$ git clone -n https://git.cclinux.org/stage/rpms/jasper.git /var/lib/mock/dist-circle8_10-updates-build-126544-90569/root/chroot_tmpdir/scmroot/jasper
Cloning into '/var/lib/mock/dist-circle8_10-updates-build-126544-90569/root/chroot_tmpdir/scmroot/jasper'...
$ git fetch origin 7a43cd57401ee36ab74a69bb94be49651131a51c:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/jasper
 * [new ref]         7a43cd57401ee36ab74a69bb94be49651131a51c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a43cd5 import jasper-2.0.14-6.el8_10