$ git clone -n https://src.fedoraproject.org/rpms/vte291.git /var/lib/mock/f42-flatpak-app-build-59153759-6571325/root/chroot_tmpdir/scmroot/vte291
Cloning into '/var/lib/mock/f42-flatpak-app-build-59153759-6571325/root/chroot_tmpdir/scmroot/vte291'...
$ git fetch origin 5224376b4fb9496814ef6781971e3df3a80fdf97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vte291
 * [new ref]         5224376b4fb9496814ef6781971e3df3a80fdf97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5224376 Update to 0.80.1