Created attachment 8528 
applications menu plugins and whisker menu plugins

I add both application menu plugin and whisker menu plugin to the panel.

For whisker menu i select "Icon and titel" in preferences to see the text next to the icon.

So now we have two icons with title saying "Applications" (or whatever it might be translated to).

    With danish translation i see "Programmer Programmer".



Then try renaming the following folder to something else:
/usr/share/locale/[LL]/LC_MESSAGES/

Example:
sudo mv /usr/share/locale/da/LC_MESSAGES/ /usr/share/locale/da/LC_MESSAGES_renamed/

Log out.
Log in.
Look how the title might have changed but only for one of the plugins.

    With danish translation i see "Applications Programmer".

Add a new applications menu plugin and a new whisker menu plugin and select "Icon and titel" again.

Notice the 4 titles now.

    With danish translation i see "Applications Programmer Applications Applications".

Rename /usr/share/locale/[LL]/LC_MESSAGES/ back to the original name and log out and log in.
Notice the 4 titles and see some might have changes.

    With danish translation i see "Programmer Programmer Programmer Applications".


The titles of the two plugins are inconsistently changing names depending on if the translation file is there, also depending on if you have changed the title manually.
I suggest having it consistent in both plugins which ever way is the best.