[Evolution] Remove attachments

[Andrea Vai <andrea vai unipv it>]

Hi, I am having some trouble removing the attachments from some
messages. Briefly, it apparently doesn't work, i.e. if I right-click
the message and choose "Remove attachments", nothing seems to happen.

This happens on some messages, but it works with others.

Didn't found anything in the list nor in bugzilla, so is there
anything I can do to track the problem down, before maybe file a new
bug?

evo 3.18.5.2

Thanks,
Andrea