$ git clone -n https://src.fedoraproject.org/rpms/pesign.git /var/lib/mock/f41-build-861787-170046/root/chroot_tmpdir/scmroot/pesign
Cloning into '/var/lib/mock/f41-build-861787-170046/root/chroot_tmpdir/scmroot/pesign'...
$ git fetch origin 434ddccb7fb1b29e57c8a1aa3d13b93e64812da8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pesign
 * [new ref]         434ddccb7fb1b29e57c8a1aa3d13b93e64812da8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 434ddcc Work around OpenSC token name changes