Fedora release 29 (Twenty Nine)

ibus-mozc-2.23.2815.102-2.fc29.x86_64
mozc-2.23.2815.102-2.fc29.x86_64

# sudo su -
# cd /usr/share/ibus/component/
# cp -p mozc.xml mozc.xml.org
# vi moac.xml

変更前
  <layout>default</layout>

変更後
  <layout>jp</layout>

<component>
  <version>0.0.0.0</version>
  <name>com.google.IBus.Mozc</name>
  <license>New BSD</license>
  <exec>/usr/libexec/ibus-engine-mozc --ibus</exec>
  <textdomain>ibus-mozc</textdomain>
  <author>Google Inc.</author>
  <homepage>https://github.com/google/mozc</homepage>
  <description>Mozc Component</description>
<engines>
<engine>
  <description>Mozc (Japanese Input Method)</description>
  <language>ja</language>
  <symbol>&#x3042;</symbol>
  <rank>80</rank>
  <icon_prop_key>InputMode</icon_prop_key>
  <icon>/usr/share/ibus-mozc/product_icon.png</icon>
  <setup>/usr/libexec/mozc/mozc_tool --mode=config_dialog</setup>
  <layout>jp</layout>
  <name>mozc-jp</name>
  <longname>Mozc</longname>
</engine>
</engines>
</component>