$ git clone -n https://src.fedoraproject.org/rpms/elements-alexandria.git /var/lib/mock/f40-build-2291802-56075/root/chroot_tmpdir/scmroot/elements-alexandria
Cloning into '/var/lib/mock/f40-build-2291802-56075/root/chroot_tmpdir/scmroot/elements-alexandria'...
$ git fetch origin 125abef24d1c4ff46494b2cda69a0a3a241a8fa7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/elements-alexandria
 * [new ref]         125abef24d1c4ff46494b2cda69a0a3a241a8fa7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 125abef Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild