$ git clone -n https://src.fedoraproject.org/rpms/dumpasn1.git /var/lib/mock/f41-build-side-1-2817281-32985/root/chroot_tmpdir/scmroot/dumpasn1
Cloning into '/var/lib/mock/f41-build-side-1-2817281-32985/root/chroot_tmpdir/scmroot/dumpasn1'...
$ git fetch origin ad3ee212817b62b45a13a89af1673fd9359df51c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dumpasn1
 * [new ref]         ad3ee212817b62b45a13a89af1673fd9359df51c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad3ee21 Migrate to SPDX license