Repo fails to check out code on windows due to ':' in filename

12:58:32 error: unable to create file base/filter/testInternalData/sync:att:test.json: Invalid argument

12:58:32 Traceback (most recent call last):

12:58:32   File "C:\Jenkins\workspace\manifest-gerrit-master\sub_workspace\.repo\repo/main.py", line 538, in <module>

12:58:32     _Main(sys.argv[1:])

12:58:32   File "C:\Jenkins\workspace\manifest-gerrit-master\sub_workspace\.repo\repo/main.py", line 512, in _Main

12:58:32     result = repo._Run(argv) or 0

12:58:32   File "C:\Jenkins\workspace\manifest-gerrit-master\sub_workspace\.repo\repo/main.py", line 185, in _Run

12:58:32     result = cmd.Execute(copts, cargs)

12:58:32   File "C:\Jenkins\workspace\manifest-gerrit-master\sub_workspace\.repo\repo/subcmds/sync.py", line 823, in Execute

12:58:32     project.Sync_LocalHalf(syncbuf, force_sync=opt.force_sync)

12:58:32   File "C:\Jenkins\workspace\manifest-gerrit-master\sub_workspace\.repo\repo/project.py", line 1332, in Sync_LocalHalf

12:58:32     self._InitWorkTree(force_sync=force_sync)

12:58:32   File "C:\Jenkins\workspace\manifest-gerrit-master\sub_workspace\.repo\repo/project.py", line 2499, in _InitWorkTree

12:58:32     raise GitError("cannot initialize work tree")