$ git clone -n https://src.fedoraproject.org/rpms/poppler.git /var/lib/mock/f40-build-2311711-57526/root/chroot_tmpdir/scmroot/poppler
Cloning into '/var/lib/mock/f40-build-2311711-57526/root/chroot_tmpdir/scmroot/poppler'...
$ git fetch origin 5de5ede22081f2950659f852ae2cd0f8ba156eba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/poppler
 * [new ref]         5de5ede22081f2950659f852ae2cd0f8ba156eba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5de5ede Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild