submodule not visible in left pane when merge resulted in submodule conflict

When a merge results in a conflict in a submodule, then this submodule is not shown in left pane. I used the submodule in the left pane to navigate to submodule with the conflict to resolve the conflict. Now I have to open the submodule by opening a new tab and then I can either use a bookmark or I have to look for submodule on my system.