$ git clone -n https://src.fedoraproject.org/rpms/gnome-multi-writer.git /var/lib/mock/f40-build-792761-138594/root/chroot_tmpdir/scmroot/gnome-multi-writer
Cloning into '/var/lib/mock/f40-build-792761-138594/root/chroot_tmpdir/scmroot/gnome-multi-writer'...
$ git fetch origin b85d14689d6ad71dab4240ab70a9dba120a4a74b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-multi-writer
 * [new ref]         b85d14689d6ad71dab4240ab70a9dba120a4a74b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b85d146 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild