When removing collection mappings, sub-mappings is removed as well (see JBIDE-7097 for a details).
When you try undo this action, only collection mapping is restored, sub-mappings remains deleted.
When removing collection mappings, sub-mappings is removed as well (see JBIDE-7097 for a details).
When you try undo this action, only collection mapping is restored, sub-mappings remains deleted.