Thanks for the quick reply!
From your link, I downloaded reg.zip and merged DisableSearchNonAsciiTextNonCaseSensitive.reg and restarted UR. Then I tried:
- Exported the same item and the Item Text remained lowercase.
- Refreshed the item, exported it, and the Item Text remained lowercase.
- Cut the RTF text, saved, and pasted the RTF text, saved, exported it, and the case is now preserved.
So the SearchNonAsciiTextNonCaseSensitive registry flag did the trick.
But is there a way to globally update Item Text from Item Details (RTF), to apply the registry flag change?