Forum information about timed discussion doesn't handle correctly "displaystartdate" and "displayenddate" containing quotes

Log in as admin Make a language customisation of "Forum" component, and modify "displaystartdate" with "It's display start: {$a}." and "displayenddate" to "It's display end: {$a}." and save modifications Create a new course or go into an existing one Create a forum using default settings Click on the "Add a new discussion topic" button Click on the "Advanced" link Type something in the "subject" and in the "message" fields. Expand the "Display period" section and set a "Display start" and "Display end" date Save. Verify that forum list of discussions well shows the "Timed" label Click on the "Timed" label Verify that you see information about the "display start" and "display end" of the discussion