$ git clone -n https://src.fedoraproject.org/rpms/osc.git /var/lib/mock/f41-build-side-1-3078627-38917/root/chroot_tmpdir/scmroot/osc
Cloning into '/var/lib/mock/f41-build-side-1-3078627-38917/root/chroot_tmpdir/scmroot/osc'...
$ git fetch origin 9ecdca6c929963b02baabc232579aec2ec688a7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osc
 * [new ref]         9ecdca6c929963b02baabc232579aec2ec688a7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ecdca6 New upstream release 1.10.1, fixes rhbz#2324701