$ git clone -n https://src.fedoraproject.org/rpms/utrac.git /var/lib/mock/f41-build-1042231-18998/root/chroot_tmpdir/scmroot/utrac
Cloning into '/var/lib/mock/f41-build-1042231-18998/root/chroot_tmpdir/scmroot/utrac'...
$ git fetch origin df07c50b824a1cec017bbbb0e3556e82c5c71005:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/utrac
 * [new ref]         df07c50b824a1cec017bbbb0e3556e82c5c71005 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df07c50 Eliminate use of obsolete %patchN syntax (#2283636)