Saving changed tags on the post-list does not close the window

[Former user]

The user expects that the system can save tags successfully. Thus closing the window after the save button has been pressed is affirmative enough. In case of errors, the window can stay open and present an error message.

[Viktor Hemsen]

fix #2396 save and close updated tag-behaviour on modal dismiss

→ <<cset 7a4dffefa813>>