Filter Widget - Remove Filters for Missing Layers

Idea created by wpgis5673 on Mar 4, 2020

    Other widgets omit references to layers if they are missing. For example, if a layer does not load, then it will not appear in the layer widget, the batch editing widget, etc. This is not the case with the filter widget. The associated filter will still appear with a message that the layer could not be loaded. Would be better if it did not display at all.