The vector layer subset filter expression it's non preserved changing the datasource (the Provider Feature Filter section in Properties|Source is empty).
Nevertheless, in the layer panel, the layer name is followed by a "filter" icon which shows a popup containing the previous filter expression (that however is non applied to the layer).
The vector layer subset filter expression it's non preserved changing the datasource (the Provider Feature Filter section in Properties|Source is empty).
Nevertheless, in the layer panel, the layer name is followed by a "filter" icon which shows a popup containing the previous filter expression (that however is non applied to the layer).