$ git clone -n https://src.fedoraproject.org/rpms/apache-commons-jxpath.git /var/lib/mock/f40-build-2195107-51516/root/chroot_tmpdir/scmroot/apache-commons-jxpath
Cloning into '/var/lib/mock/f40-build-2195107-51516/root/chroot_tmpdir/scmroot/apache-commons-jxpath'...
$ git fetch origin 2ffbce5960f6f56ec33e8b37ade01b01bbc4973c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apache-commons-jxpath
 * [new ref]         2ffbce5960f6f56ec33e8b37ade01b01bbc4973c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ffbce5 Update javapackages test plan to f40