$ git clone -n https://src.fedoraproject.org/rpms/baresip.git /var/lib/mock/f41-build-side-1-3140313-39960/root/chroot_tmpdir/scmroot/baresip
Cloning into '/var/lib/mock/f41-build-side-1-3140313-39960/root/chroot_tmpdir/scmroot/baresip'...
$ git fetch origin 8f5e567bbf4fda210cc2385d3b812e2e66aec60b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/baresip
 * [new ref]         8f5e567bbf4fda210cc2385d3b812e2e66aec60b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f5e567 Upgrade to 3.18.0 (#2331640)