$ git clone -n https://src.fedoraproject.org/rpms/easymock.git /var/lib/mock/f40-build-2124854-50776/root/chroot_tmpdir/scmroot/easymock
Cloning into '/var/lib/mock/f40-build-2124854-50776/root/chroot_tmpdir/scmroot/easymock'...
$ git fetch origin b48cf830df6d196152c7ca3281bd0aabc3c7e152:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/easymock
 * [new ref]         b48cf830df6d196152c7ca3281bd0aabc3c7e152 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b48cf83 Update javapackages test plan to f40