LPS-44938 - Portlet title wiki is displayed as ",,," on mobile device in content page

Hey @ipeychev,

Attached is an update for http://issues.liferay.com/browse/LPS-44938.

I am sending you this fix since it was caused by https://github.com/liferay/liferay-portal/commit/e1ffd74876afaba45aa72da69af575f07bf174ab and https://github.com/liferay/liferay-portal/commit/27458cde882c71138caa54ce6615cc628f18d80f

Please let me know if you have any questions.  Thanks!

@jbalsas