diff --git a/src/core/state.go b/src/core/state.go
index 3596885b51..ab1f0b4582 100644
--- a/src/core/state.go
+++ b/src/core/state.go
@@ -1240,7 +1240,10 @@ func (state *BuildState) ForTarget(target *BuildTarget) *BuildState {
 func (state *BuildState) ForArch(arch cli.Arch) *BuildState {
 	state.progress.mutex.Lock()
 	defer state.progress.mutex.Unlock()
+	return state.forArch(arch)
+}
 
+func (state *BuildState) forArch(arch cli.Arch) *BuildState {
 	for _, s := range state.progress.allStates {
 		if s.Arch == arch && s.CurrentSubrepo == state.CurrentSubrepo {
 			return s
@@ -1269,8 +1272,15 @@ func (state *BuildState) ForArch(arch cli.Arch) *BuildState {
 	s.Config = config
 	s.RepoConfig = repoConfig
 	s.Arch = arch
-	state.progress.allStates = append(state.progress.allStates, s)
 
+	// Make sure that any parent states are also for the requested arch.
+	if s.ParentState != nil {
+		if s.ParentState.Arch != arch {
+			s.ParentState = s.ParentState.forArch(arch)
+		}
+	}
+
+	state.progress.allStates = append(state.progress.allStates, s)
 	return s
 }
 
diff --git a/test/subrepo/arch_subrepo_config/BUILD b/test/subrepo/arch_subrepo_config/BUILD
new file mode 100644
index 0000000000..dff19e15ac
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/BUILD
@@ -0,0 +1,9 @@
+subinclude("//test/build_defs")
+
+
+please_repo_e2e_test(
+    name = "arch_subrepo_config",
+    expected_failure = False,
+    plz_command = "plz build --arch test_arch //:testFile",
+    repo = "test_repo"
+)
\ No newline at end of file
diff --git a/test/subrepo/arch_subrepo_config/test_repo/.plzconfig b/test/subrepo/arch_subrepo_config/test_repo/.plzconfig
new file mode 100644
index 0000000000..4e552569cd
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/test_repo/.plzconfig
@@ -0,0 +1,4 @@
+
+[Plugin "plugin"]
+Target = //:plugin
+teststring = "RootString"
\ No newline at end of file
diff --git a/test/subrepo/arch_subrepo_config/test_repo/.plzconfig_test_arch b/test/subrepo/arch_subrepo_config/test_repo/.plzconfig_test_arch
new file mode 100644
index 0000000000..b91e826117
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/test_repo/.plzconfig_test_arch
@@ -0,0 +1,4 @@
+
+[Plugin "plugin"]
+Target = //:plugin
+teststring =  "RootArchString"
\ No newline at end of file
diff --git a/test/subrepo/arch_subrepo_config/test_repo/BUILD_FILE b/test/subrepo/arch_subrepo_config/test_repo/BUILD_FILE
new file mode 100644
index 0000000000..665976cdce
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/test_repo/BUILD_FILE
@@ -0,0 +1,33 @@
+
+local_repository(
+    name="subrepo",
+    path="./subrepo"
+)
+
+subrepo(
+    name="plugin",
+    path="./plugin",
+    plugin=True
+)
+
+subinclude("///plugin//:plugin")
+
+# Parse the subrepo twice; by calling it as the host arch via tool, and by calling it as the target arch.
+build_rule(
+    name="testFile",
+    cmd="echo " + CONFIG.PLUGIN.TESTSTRING + " > testFile",
+    outs=["testFile"],
+    tools="///subrepo//:subrepoFile",
+    deps=
+    [
+        "///subrepo//:subrepoFile"
+    ],
+    visibility=["PUBLIC"]
+)
+
+# Fail if the plugin config value is unexpected.
+if(
+    (CONFIG.OS == "test" and CONFIG.PLUGIN.TESTSTRING != "RootArchString") or
+    (CONFIG.OS == CONFIG.HOSTOS and CONFIG.PLUGIN.TESTSTRING != "RootString")
+    ):
+    log.fatal("Wrong option set: " + CONFIG.PLUGIN.TESTSTRING + " (in " + CONFIG.OS + ") with the host arch: " + CONFIG.HOSTARCH + "_" + CONFIG.HOSTOS)
\ No newline at end of file
diff --git a/test/subrepo/arch_subrepo_config/test_repo/plugin/.plzconfig b/test/subrepo/arch_subrepo_config/test_repo/plugin/.plzconfig
new file mode 100644
index 0000000000..e1148a3dee
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/test_repo/plugin/.plzconfig
@@ -0,0 +1,10 @@
+
+
+#Define a simple plugin with an inherited string key to test with.
+[PluginDefinition]
+name = plugin
+
+[PluginConfig "teststring"]
+ConfigKey = teststring
+DefaultValue = "DefaultString"
+Inherit = true 
diff --git a/test/subrepo/arch_subrepo_config/test_repo/plugin/BUILD_FILE b/test/subrepo/arch_subrepo_config/test_repo/plugin/BUILD_FILE
new file mode 100644
index 0000000000..e057d25557
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/test_repo/plugin/BUILD_FILE
@@ -0,0 +1,7 @@
+
+# Empty plugin to load config.
+filegroup(
+    name = "plugin",
+    srcs = [],
+    visibility = ["PUBLIC"]
+)
\ No newline at end of file
diff --git a/test/subrepo/arch_subrepo_config/test_repo/subrepo/.plzconfig b/test/subrepo/arch_subrepo_config/test_repo/subrepo/.plzconfig
new file mode 100644
index 0000000000..98168cc32a
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/test_repo/subrepo/.plzconfig
@@ -0,0 +1,4 @@
+
+[Plugin "plugin"]
+Target = //:plugin
+teststring =  "subrepoString"
\ No newline at end of file
diff --git a/test/subrepo/arch_subrepo_config/test_repo/subrepo/.plzconfig_test_arch b/test/subrepo/arch_subrepo_config/test_repo/subrepo/.plzconfig_test_arch
new file mode 100644
index 0000000000..3d22881344
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/test_repo/subrepo/.plzconfig_test_arch
@@ -0,0 +1,4 @@
+
+[Plugin "plugin"]
+Target = //:plugin
+teststring = "subrepoArchString"
diff --git a/test/subrepo/arch_subrepo_config/test_repo/subrepo/BUILD_FILE b/test/subrepo/arch_subrepo_config/test_repo/subrepo/BUILD_FILE
new file mode 100644
index 0000000000..6164df7a0d
--- /dev/null
+++ b/test/subrepo/arch_subrepo_config/test_repo/subrepo/BUILD_FILE
@@ -0,0 +1,16 @@
+
+subinclude("///plugin//:plugin")
+
+build_rule(
+    name="subrepoFile",
+    cmd="echo " + CONFIG.PLUGIN.TESTSTRING + " > subrepoFile",
+    outs=["subrepoFile"],
+    visibility=["PUBLIC"]
+)
+
+# Fail if the plugin config value is unexpected.
+if(
+    (CONFIG.OS == "test" and CONFIG.PLUGIN.TESTSTRING != "RootArchString") or
+    (CONFIG.OS == CONFIG.HOSTOS and CONFIG.PLUGIN.TESTSTRING != "RootString")
+    ):
+    log.fatal("Wrong subrepo option set: " + CONFIG.PLUGIN.TESTSTRING + " (in " + CONFIG.OS + ") with the host arch: " + CONFIG.HOSTARCH + "_" + CONFIG.HOSTOS)
\ No newline at end of file