Renaming Collections

64-Bit Windows 7 Pro
digiKam 7.3.0

In Settings > Configure digiKam > Collections, in the list of collections, left-hand side, where the collections are listed by name, oldest to most recent, digiKam will allow me to double-click a collection name and edit the text; however, I cannot find anyway to commit my edit; it just reverts to the original name.

Why is this so hard to accomplish, renaming a collection ?

It should be no different than renaming a folder.

Am I missing something ?