$ git clone -n https://src.fedoraproject.org/rpms/xpdf.git /var/lib/mock/f39-build-1558692-37307/root/chroot_tmpdir/scmroot/xpdf
Cloning into '/var/lib/mock/f39-build-1558692-37307/root/chroot_tmpdir/scmroot/xpdf'...
$ git fetch origin bfd12249630afb1935f5249e68b23612350caf65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xpdf
 * [new ref]         bfd12249630afb1935f5249e68b23612350caf65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bfd1224 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild