$ git clone -n https://src.fedoraproject.org/rpms/boomaga.git /var/lib/mock/f40-build-2274753-55026/root/chroot_tmpdir/scmroot/boomaga
Cloning into '/var/lib/mock/f40-build-2274753-55026/root/chroot_tmpdir/scmroot/boomaga'...
$ git fetch origin e0fb9c20aceab8250251ad7d8764943b54382ede:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/boomaga
 * [new ref]         e0fb9c20aceab8250251ad7d8764943b54382ede -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0fb9c2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild