$ git clone -n https://src.fedoraproject.org/rpms/breeze-gtk.git /var/lib/mock/f39-build-1566887-37592/root/chroot_tmpdir/scmroot/breeze-gtk
Cloning into '/var/lib/mock/f39-build-1566887-37592/root/chroot_tmpdir/scmroot/breeze-gtk'...
$ git fetch origin 9106a49f5b93aae93c77f435d5daf6db04844080:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/breeze-gtk
 * [new ref]         9106a49f5b93aae93c77f435d5daf6db04844080 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9106a49 Update to 5.27.8