how did i succeed doing such a ridiculously silly thing? well i think it happened like:
1. verifying that the regression tests pass with old resample2.c
2. updating the regressions to the new resample2.c ... failed svn complained
3. svn up
4. updating the regressions to the new resample2.c success (r8485)

at that point everything was still ok

5. some more resample2.c work update regressions, read diff, commit (r8486)

my misstake was that the svn up at point 3 was run in tests/  -> iam an idiot

Originally committed as revision 8489 to svn://svn.ffmpeg.org/ffmpeg/trunk