$ git clone -n https://src.fedoraproject.org/rpms/gfs-porson-fonts.git /var/lib/mock/f45-build-9866-409/root/chroot_tmpdir/scmroot/gfs-porson-fonts
Cloning into '/var/lib/mock/f45-build-9866-409/root/chroot_tmpdir/scmroot/gfs-porson-fonts'...
$ git fetch origin bcd882456d876b6e5878b36775bcd825dee5cd28:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gfs-porson-fonts
 * [new ref]         bcd882456d876b6e5878b36775bcd825dee5cd28 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bcd8824 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild