$ git clone -n https://src.fedoraproject.org/rpms/ghc-asn1-types.git /var/lib/mock/f38-build-side-42-init-devel-899687-28587/root/chroot_tmpdir/scmroot/ghc-asn1-types
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-899687-28587/root/chroot_tmpdir/scmroot/ghc-asn1-types'...
$ git fetch origin ae6fdff6452a6095a3f33fbff4eee203b58f3bdf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-asn1-types
 * [new ref]         ae6fdff6452a6095a3f33fbff4eee203b58f3bdf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae6fdff Convert to %autorelease and %autochangelog