**Reported problems** 1. When the drawer is open, then a new item is opened, "Back" changes the URL to the prior item but does not actually show the prior item 1. _There's a bug in the history mechanism after switching between different issues in the drawer. Going back to an URI with NO `show` parameter correctly hides the side panel again, but switching between two URIs that DO have a `show` parameter keeps showing the wrong (last shown) issue._ 2. ~~History not set if item not fully loaded~~ **(broken out into https://gitlab.com/gitlab-org/gitlab/-/issues/534727)** 1. _Yet another history bug where navigation by forward/back doesn't work reliably if the asynchronous parts haven't fully loaded yet. Sometimes 2 back-actions are required to reverse only one click, and sometimes the the changed URI wasn't pushed into the history at all so the back-action take you out of the issues list._