$ git clone -n https://src.fedoraproject.org/rpms/libnest2d.git /var/lib/mock/f39-build-1458071-33035/root/chroot_tmpdir/scmroot/libnest2d
Cloning into '/var/lib/mock/f39-build-1458071-33035/root/chroot_tmpdir/scmroot/libnest2d'...
$ git fetch origin 8cba0bdb28417349abdc9ff9cddb0190a13aafb4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libnest2d
 * [new ref]         8cba0bdb28417349abdc9ff9cddb0190a13aafb4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cba0bd Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild