The feature:
Ability to turn of issue/stamp filtering temporarily or a show all issues button on the bottom hot bar that can be toggled between showing all current issues and the current in use filter settings. 

Ideal implementation:
The most ideal option would be something that stays in the the 3D view pane, such as a toggle button next to the issue visibility button. Next best thing (or additional option) would be something next to the reset filter button (or a undo option instead of it disappearing)

Context:
When filtering out issues I often find myself looking at a very narrow band of issues, e.g. electrical issues in level 1, often without a saved filter. 

In doing my reviews I might come across a issue of a different kind that should be tagged, but because of my filter the issue isn't included in the current issues being shown so I cant see if it has been tagged before.

This requires me to reset all my filters to check that one issue and then add them all in to continue in my review. This can become tedious and tiresome after needing to do it a few times. 

It is less of an issue when using saved filters but is still tedious as there are many saved filters that need to be scrolled through each time to click it again, making the option to toggle very valuable if it was implemented