$ git clone -n https://src.fedoraproject.org/rpms/iaxclient.git /var/lib/mock/f40-build-2670086-67298/root/chroot_tmpdir/scmroot/iaxclient
Cloning into '/var/lib/mock/f40-build-2670086-67298/root/chroot_tmpdir/scmroot/iaxclient'...
$ git fetch origin 998a0bd4098a1670bd5cc61f30285806e05a9b97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/iaxclient
 * [new ref]         998a0bd4098a1670bd5cc61f30285806e05a9b97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 998a0bd Add iaxclient-gcc14.patch