There are two (automatic) ways to correct a spelling in v1.4+ CSIDE:
If hovers are enabled, you can hover over the misspelt item and select 'Quick Fix', which will provide suggestions (if any)
Alternatively, the same 'Quick Fix' suggestions will be accessible via the Monaco editor lightbulb
The Quick Fix method is working as intended and correctly replaces the word with the selected suggestion.
The lightbulb method however, seems to only insert the new word at the cursor position, leaving the old text present as well:
There are two (automatic) ways to correct a spelling in v1.4+ CSIDE:
The Quick Fix method is working as intended and correctly replaces the word with the selected suggestion. The lightbulb method however, seems to only insert the new word at the cursor position, leaving the old text present as well: