This seems to be bug with Jira FishEye+Crucible, however, I've resolved the issue with a workaround. Resolved the issue by:
Delete property change lines such as :
Property changes on: /Validator.class.php
Deleted: svn:mergeinfo
Reverse-merged /Validator.class.php:r8387-8842
Reverse-merged /Validator.class.php:r8746-8979
Reverse-merged /Validator.class.php:r8860-8862
FishEye+Crucible seems to have some issue with property changes and merge info in Diff/Path files, so it's better to remove them.
Optionally add \ No newline at end of file at the end of the file.
Doing above have resolved problems for me, I hope this to be useful for someone facing same problem.
Cheers
Ravish