$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-smallsemi.git /var/lib/mock/f41-build-1020870-18021/root/chroot_tmpdir/scmroot/gap-pkg-smallsemi
Cloning into '/var/lib/mock/f41-build-1020870-18021/root/chroot_tmpdir/scmroot/gap-pkg-smallsemi'...
$ git fetch origin c42657242db7b9567af66f26c1eeec1267e8e95e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-smallsemi
 * [new ref]         c42657242db7b9567af66f26c1eeec1267e8e95e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c426572 Version 0.7.0