$ git clone -n https://src.fedoraproject.org/rpms/privoxy.git /var/lib/mock/f39-build-1558362-37304/root/chroot_tmpdir/scmroot/privoxy
Cloning into '/var/lib/mock/f39-build-1558362-37304/root/chroot_tmpdir/scmroot/privoxy'...
$ git fetch origin a4ac860748a2cd8f158064193d75870e296c4d86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/privoxy
 * [new ref]         a4ac860748a2cd8f158064193d75870e296c4d86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4ac860 pcre2 fixes