Escape curly braces in pr_title
          #2169
        
          
      
                
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Added a simple helper to escape curly braces for glue (
ui_escape_glue()inutils-ui.R), then applied it in the relevantpr_*()functions. I used Positron Assistant (with Claude) and Google Gemini (using my personal setup) on this to test Positron Assistant, then revised their fixes significantly.@jennybc Should I add a test for this in
manual-pr-functions.R? Or I could automate this stuff with mocked github API calls if you want to go that far.Fixes #2107