Blank space shown at top when opening conversation

Environment info

• Browser, version, OS, platform: Iceraven 2.22.1, LineageOS 21, Android
• Instance URL: https://hidamari.apartments
• Frontend version (see settings -> about): 83189d9d
• Backend version (see settings -> about): 2.7.0-127-g8d070346-develop
• Browser extensions (ublock, rikaichamp etc): AdNauseam

Bug description & reproduction steps

When clicking on the timestamp in a post to view the whole conversation, sometimes the whole page display shift downwards and leaves a white space at the top. It appears to be completely random which posts it will happen to, but I think it occurs more frequently when you open a conversation with only 1 post.

Bug seriousness

Just annoying