$ git clone -n https://src.fedoraproject.org/rpms/jacktrip.git /var/lib/mock/f40-build-2546622-61908/root/chroot_tmpdir/scmroot/jacktrip
Cloning into '/var/lib/mock/f40-build-2546622-61908/root/chroot_tmpdir/scmroot/jacktrip'...
$ git fetch origin 77620dd112ac73a4c553e446b3c563ff92aa1802:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jacktrip
 * [new ref]         77620dd112ac73a4c553e446b3c563ff92aa1802 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77620dd Update to 2.2.3