$ git clone -n https://src.fedoraproject.org/rpms/simde.git /var/lib/mock/f39-build-1512670-35568/root/chroot_tmpdir/scmroot/simde
Cloning into '/var/lib/mock/f39-build-1512670-35568/root/chroot_tmpdir/scmroot/simde'...
$ git fetch origin ffc70fa93611d3814e847fac92fbf1e3c90d5618:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/simde
 * [new ref]         ffc70fa93611d3814e847fac92fbf1e3c90d5618 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ffc70fa Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild