$ git clone -n https://src.fedoraproject.org/rpms/ghc-iso8601-time.git /var/lib/mock/f45-build-10479-418/root/chroot_tmpdir/scmroot/ghc-iso8601-time
Cloning into '/var/lib/mock/f45-build-10479-418/root/chroot_tmpdir/scmroot/ghc-iso8601-time'...
$ git fetch origin 9904b50feb4b81dd8875fdf1c48eb5f92eb6ca09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-iso8601-time
 * [new ref]         9904b50feb4b81dd8875fdf1c48eb5f92eb6ca09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9904b50 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild