$ git clone -n https://src.fedoraproject.org/rpms/ghc-asn1-types.git /var/lib/mock/f45-build-9967-412/root/chroot_tmpdir/scmroot/ghc-asn1-types
Cloning into '/var/lib/mock/f45-build-9967-412/root/chroot_tmpdir/scmroot/ghc-asn1-types'...
$ git fetch origin a219c0128b2b39444b5b9d2ce4fef01cbd46129d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-asn1-types
 * [new ref]         a219c0128b2b39444b5b9d2ce4fef01cbd46129d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a219c01 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild