Deleting a incorrectly set SVN mergeinfo manually created with GIT-SVN

Question

How do I delete a incorrectly set SVN mergeinfo from SVN? I made the mistake of creating a custom mergeinfo... SVN now reports the dreaded

svn: E200020: Pathname not terminated by ':' 

error. Is there a way to delete a specific mergeinfo from SVN? All I was able to find was a way to delete all mergeinfos.

SVN propget reports:

cd svn
svn propget svn:mergeinfo --depth=infinity | grep -v :
trunk - /PROJECT/branches/my_branch

I can't seem to delete it:

svn propdel svn:mergeinfo "/PROJECT/branches/my_branch"
svn: E155007: '/PROJECT/branches/my_branch' is not a working copy

We used svn propedit to edit the svn mergeinfo:

svn propedit trunk

Answer 1

The mergeinfo is a property on your svn directory, so you need to delete it from there and then commit it:

cd svn
svn propdel svn:mergeinfo 
svn commit -m "Deleting bad mergeinfo"

The /PROJECT/branches/my_branch indicates that revisions were merged into your working copy located in the svn folder from my_branch .