Prompt user if closing tab with changes

Number:rdar://11859165 Date Originated:7/12/2012
Status:Closed Resolved:Duplicate/9777958
Product:Developer Tools Product Version:4.3
Classification:UI/Usability Reproducible:Always
Steps to Reproduce:
- In Xcode 4, configure a tab to your liking.
- Accidentally hit Cmd-W.

Expected Results:
- You are prompted as to whether you want to close the tab, or, if the tab is closed automatically, Cmd-Z brings it back.

Actual Results:
- It's just gone, making it frustrating to use "task-based tabs" as recommended in WWDC 2012 session "Working Efficiently with Xcode".

- Not a regression.

- See here for more details (and a  rather cranky blog post):


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!