$ git clone -n https://src.fedoraproject.org/rpms/gambit-c.git /var/lib/mock/f40-build-791141-137124/root/chroot_tmpdir/scmroot/gambit-c
Cloning into '/var/lib/mock/f40-build-791141-137124/root/chroot_tmpdir/scmroot/gambit-c'...
$ git fetch origin 595db9d10275709909af0a996bd05cb2d4d3a6f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gambit-c
 * [new ref]         595db9d10275709909af0a996bd05cb2d4d3a6f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 595db9d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild