convert: svn: check for branch movement in any log entry, not just the first.
This fixes, for example,
r4151
D /branches
A /project/branches (from /branches:4150)
A /project/tags (from /tags:4150)
A /project/trunk (from /trunk:4150)
D /tags
D /trunk
#!/bin/sh
echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH
hg init a
cd a
echo 'base' > base
hg ci -Ambase -d '1 0'
hg qnew -mmqbase mqbase
hg qsave
hg qrestore 2