$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-orb.git /var/lib/mock/f41-build-856937-167833/root/chroot_tmpdir/scmroot/gap-pkg-orb
Cloning into '/var/lib/mock/f41-build-856937-167833/root/chroot_tmpdir/scmroot/gap-pkg-orb'...
$ git fetch origin 19f78bfeea14943ee619852adb09bc8ca5762786:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-orb
 * [new ref]         19f78bfeea14943ee619852adb09bc8ca5762786 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19f78bf Work around differing hash values based on endianness