$ git clone -n https://src.fedoraproject.org/rpms/webkit2gtk4.0.git /var/lib/mock/f40-build-2368466-60387/root/chroot_tmpdir/scmroot/webkit2gtk4.0
Cloning into '/var/lib/mock/f40-build-2368466-60387/root/chroot_tmpdir/scmroot/webkit2gtk4.0'...
$ git fetch origin be61a08a7573eac6468508ce4889f4fa8489bc15:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/webkit2gtk4.0
 * [new ref]         be61a08a7573eac6468508ce4889f4fa8489bc15 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be61a08 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild