Well that is interesting. I am not seeing that extra highlighting with 2021.1 and 2022.1 when I test your string. I tried double and single quotes in the string and in the regex.
I am not the best with regex but do you need 2 single quotes?
I did some experimenting and what able to reproduce it but it was a bit weird and seems to be a result of copy and paste.
If I hand type the test string and regex I get a good result, If I copy and paste the text from your question about I get 0 matches. If I copy use the quote mark from the text string I gut the same result as you.
Typed
From the text in your question
Copied quotes into regex
Somehow I’m guessing there is a difference in the encoding here. Maybe UTF-16 vs UTF-8
We use 3 different kinds of cookies. You can choose which cookies you want to accept. We need basic cookies to make this site work, therefore these are the minimum you can select. Learn more about our cookies.