$ git clone -n https://src.fedoraproject.org/rpms/ghc-clientsession.git /var/lib/mock/f45-build-10094-413/root/chroot_tmpdir/scmroot/ghc-clientsession
Cloning into '/var/lib/mock/f45-build-10094-413/root/chroot_tmpdir/scmroot/ghc-clientsession'...
$ git fetch origin 522e6e49c59930caf8952561acb672903f0ba9ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-clientsession
 * [new ref]         522e6e49c59930caf8952561acb672903f0ba9ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 522e6e4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild