$ git clone -n https://src.fedoraproject.org/rpms/airtsp.git /var/lib/mock/f40-build-2225565-52830/root/chroot_tmpdir/scmroot/airtsp
Cloning into '/var/lib/mock/f40-build-2225565-52830/root/chroot_tmpdir/scmroot/airtsp'...
$ git fetch origin 4f5828f3a90c428f862a8fef8319f228338043e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/airtsp
 * [new ref]         4f5828f3a90c428f862a8fef8319f228338043e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f5828f Modernized the spec file