$ git clone -n https://src.fedoraproject.org/rpms/E.git /var/lib/mock/f40-build-790647-136628/root/chroot_tmpdir/scmroot/E
Cloning into '/var/lib/mock/f40-build-790647-136628/root/chroot_tmpdir/scmroot/E'...
$ git fetch origin 3b36a27a2ec1861a29336a15babec8d97eeaefb0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/E
 * [new ref]         3b36a27a2ec1861a29336a15babec8d97eeaefb0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b36a27 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild