$ git clone -n https://src.fedoraproject.org/rpms/ghc-HaXml.git /var/lib/mock/f45-build-9895-411/root/chroot_tmpdir/scmroot/ghc-HaXml
Cloning into '/var/lib/mock/f45-build-9895-411/root/chroot_tmpdir/scmroot/ghc-HaXml'...
$ git fetch origin 3f114950913025cae92477119ee065667172b598:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-HaXml
 * [new ref]         3f114950913025cae92477119ee065667172b598 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f11495 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild