$ git clone -n https://src.fedoraproject.org/rpms/gnome-directory-thumbnailer.git /var/lib/mock/f39-build-1462304-33321/root/chroot_tmpdir/scmroot/gnome-directory-thumbnailer
Cloning into '/var/lib/mock/f39-build-1462304-33321/root/chroot_tmpdir/scmroot/gnome-directory-thumbnailer'...
$ git fetch origin e743ee93a8d739cde6a8e28a21794e0aff2bac9b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-directory-thumbnailer
 * [new ref]         e743ee93a8d739cde6a8e28a21794e0aff2bac9b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e743ee9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild