$ git clone -n https://src.fedoraproject.org/rpms/jackson-annotations.git /var/lib/mock/f41-build-1273191-23132/root/chroot_tmpdir/scmroot/jackson-annotations
Cloning into '/var/lib/mock/f41-build-1273191-23132/root/chroot_tmpdir/scmroot/jackson-annotations'...
$ git fetch origin 0994802c1bd5eef157e34661acb420007a35f5e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jackson-annotations
 * [new ref]         0994802c1bd5eef157e34661acb420007a35f5e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0994802 Update to 2.17.1 upstream release