$ git clone -n https://src.fedoraproject.org/rpms/stormbaancoureur.git /var/lib/mock/f41-build-1127515-20334/root/chroot_tmpdir/scmroot/stormbaancoureur
Cloning into '/var/lib/mock/f41-build-1127515-20334/root/chroot_tmpdir/scmroot/stormbaancoureur'...
$ git fetch origin 8227b64db67a9b7d038d0d2f73f191d9aafed48b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/stormbaancoureur
 * [new ref]         8227b64db67a9b7d038d0d2f73f191d9aafed48b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8227b64 Eliminate use of obsolete %patchN syntax (#2283636)