$ git clone -n https://src.fedoraproject.org/rpms/ghc-gi-gtk4.git /var/lib/mock/f45-build-10341-415/root/chroot_tmpdir/scmroot/ghc-gi-gtk4
Cloning into '/var/lib/mock/f45-build-10341-415/root/chroot_tmpdir/scmroot/ghc-gi-gtk4'...
$ git fetch origin 9a5e0c21e56339dd16dea431448c52292eedfe29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-gi-gtk4
 * [new ref]         9a5e0c21e56339dd16dea431448c52292eedfe29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a5e0c2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild