$ git clone -n https://src.fedoraproject.org/rpms/baresip.git /var/lib/mock/f40-build-1433872-23572/root/chroot_tmpdir/scmroot/baresip
Cloning into '/var/lib/mock/f40-build-1433872-23572/root/chroot_tmpdir/scmroot/baresip'...
$ git fetch origin 9d8964ede5e8833f44e5b12149086beef6ef6db2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/baresip
 * [new ref]         9d8964ede5e8833f44e5b12149086beef6ef6db2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d8964e Upgrade to 3.13.0 (#2293512)