Formatting breaks when Topic (List) Excerpts theme component used with RSS Polling plugin

Continuing the discussion from Topic List Excerpts:

I’m using the Topic (List) Excerpts theme component plus the RSS Polling plugin.

If the theme component is enabled on categories containing topics created by the RSS Polling plugin, it breaks the formatting. Formatting works again when the theme component is disabled again. The theme component does work in categories not containing RSS topics.

The problem is that instead of the width being responsive, it takes up the full width of a wide screen and just does not fit into a small screen at all.

I wonder whether it’s caused by long URLs in the “Full details available at” text created by the RSS plugin.

Just found a solution, on my Chrome browser at least.

Add this in a theme component:

.topic-excerpt span {
  word-break: break-all;
}

But please let me know whether this will cause other problems! Thanks.