RTL marks in displaynames affect following text

[matrixbot]

Created by @ richvdh:sw1v.org.

Do we need to wrap them with <span dir=auto> or something?

[richvdh]

<div class="mx_TextualEvent">@magnap:matrix.magnap.dk changed their display name from &#8238; to Magnap</div>

->

@magnap:matrix.magnap.dk changed their display name from ‮ to Magnap

[uhoreg]

FWIW, <span style="display:inline-block"> seems to also work in blocking the RTL mark from affecting subsequent text. The benefit of this over <span dir=auto> is that you can do something like <span class="user_alias"> and put the "display: inline-block" in the stylesheet, and also do additional styling if you wanted to. But it's more verbose (and unclear what it's for).

[richvdh]

We need a solution not involving markup for this, because the messages also end up in pop-up notifications, which are plain text. As per my question at https://stackoverflow.com/questions/41487035/handling-right-to-left-left-to-right-override-characters-in-user-input, the right thing to do is probably to strip out RLO and LRO characters.

[richvdh]

This is particularly bad where it affects collapsed joins/parts (MELS).

[afranke]

Also affects email notifications.