$ git clone -n https://src.fedoraproject.org/rpms/gnome-directory-thumbnailer.git /var/lib/mock/f40-build-2280629-55413/root/chroot_tmpdir/scmroot/gnome-directory-thumbnailer
Cloning into '/var/lib/mock/f40-build-2280629-55413/root/chroot_tmpdir/scmroot/gnome-directory-thumbnailer'...
$ git fetch origin 4d854c4c5bafa5e5299a99d9b97c374e0b9a8692:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-directory-thumbnailer
 * [new ref]         4d854c4c5bafa5e5299a99d9b97c374e0b9a8692 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d854c4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild