[folding] Go to Reference does not unfold folded regions under some circumstances

[tomblind]

• VSCode Version: 1.43.2
• OS Version: Windows 10 Home 1903 18362.720

Steps to Reproduce:

1. Fold a region containing references to a symbol
2. Leave that file open in the editor, but hide it with another tab
3. Select "Go to Reference" from another open file on the symbol via context menu
4. Double-click the reference in the folded region from the peek window
   
5. Alternatively, use "Find All References" and select the symbol in the folded region from the sidebar
   

Does this issue occur when all extensions are disabled?: Yes/No

Extensions are required for finding references, so this cannot be tested without them. The issue does occur with both languages that I tried: Typescript and C#, which suggests it is not an issue with a specific extension.

Note that the issue only occurs if the file with folds is open, but not visible. If it is closed, or if it is open and visible, the fold is unfolded as expected.

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• [folding] Move line up/down should skip over folded regions or folded sections (#63972)
• [folding] show folding actions at the end of folding range as well (#60670)
• [search-and-replace] [folding] Option to ignore folded blocks (#90843)
• [folding] Fold All in selection (#74360)
• Fold Indicator display error (#91985)