$ git clone -n https://src.fedoraproject.org/rpms/bustle.git /var/lib/mock/f40-build-2274904-55039/root/chroot_tmpdir/scmroot/bustle
Cloning into '/var/lib/mock/f40-build-2274904-55039/root/chroot_tmpdir/scmroot/bustle'...
$ git fetch origin de61da4e6c51b1827deee38be2a3a7fa42795941:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bustle
 * [new ref]         de61da4e6c51b1827deee38be2a3a7fa42795941 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de61da4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild