$ git clone -n https://src.fedoraproject.org/rpms/seamonkey.git /var/lib/mock/f40-build-2408463-60559/root/chroot_tmpdir/scmroot/seamonkey
Cloning into '/var/lib/mock/f40-build-2408463-60559/root/chroot_tmpdir/scmroot/seamonkey'...
$ git fetch origin 494218690dd8763300f8700af08bcbf38768b3d7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/seamonkey
 * [new ref]         494218690dd8763300f8700af08bcbf38768b3d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4942186 Rebuild for jpegxl (libjxl) 0.9.2 with soname bump