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Discard old duplicates needs to be case-sensitive #5866

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opened 2026-01-31 00:23:45 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 00:23:45 +00:00
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Originally created by @cniggeler on GitHub (Jan 12, 2020).

Windows build number: [run `[Environment]::OSVersion` for powershell, or `ver` for cmd]
Windows Terminal version (if applicable):
Microsoft Windows [Version 10.0.18362.535]

Any other software? No, none required

Steps to reproduce

Command Prompt Properties - check "Discard Old Duplicates" in history section
Enable the Experimental Console (UNcheck "Use Legacy Console..."

Expected behavior

Run the two commands,
foo /v
foo /V

Then use up-arrow to view the history. You should see BOTH in the history. This is the case for the classic console.

Actual behavior

In the experimental console, only the FIRST instance (foo /v) is preserved. That is, the new console acting case-insensitive, but 'V' and 'v' can have significance to "foo"!

Originally created by @cniggeler on GitHub (Jan 12, 2020). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. If this is an application crash, please also provide a Feedback Hub submission link so we can find your diagnostic data on the backend. Use the category "Apps > Windows Terminal (Preview)" and choose "Share My Feedback" after submission to get the link. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> ```none Windows build number: [run `[Environment]::OSVersion` for powershell, or `ver` for cmd] Windows Terminal version (if applicable): Microsoft Windows [Version 10.0.18362.535] Any other software? No, none required ``` # Steps to reproduce Command Prompt Properties - check "Discard Old Duplicates" in history section Enable the Experimental Console (UNcheck "Use Legacy Console..." # Expected behavior <!-- A description of what you're expecting, possibly containing screenshots or reference material. --> Run the two commands, foo /v foo /V Then use up-arrow to view the history. You should see BOTH in the history. This is the case for the classic console. # Actual behavior <!-- What's actually happening? --> In the experimental console, only the FIRST instance (foo /v) is preserved. That is, the new console acting case-insensitive, but 'V' and 'v' can have significance to "foo"!
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Reference: starred/terminal#5866
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