用svn diff查看了下,发现原来是mergeinfo信息被修改了。
google了下发现有这个讨论:
http://stackoverflow.com/questions/767418/remove-unnecessary-svnmergeinfo-properties
解决办法:
svn propdel svn:mergeinfo -R svn revert . svn ci -m "Removed mergeinfo"
svn propdel svn:mergeinfo -R svn revert . svn ci -m "Removed mergeinfo"