I use mercurial queues and sometimes I forget to set my message with a hg qrefresh -m ... and forget to check before I run hg qfinish and I get the message patch MyPatch finalized without changeset message. Is there any way I can make qfinish abort if there is no message?
The only way I found to fix this after I do that is to generate a patch, hg strip my last revision, reapply the patch and then commit with my message.
Use hg qimport -r tip to turn the last changeset (your finalized patch) in to a MQ patch again.