Shift + arrow to select text inserts ;2D instead of selecting
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Description
I hope this isn't filed already, but just to be sure: I Just noticed after updating that I can't select text anymore by using Shift + Left Arrow. I disabled all the plugins to make sure it's not something external:

https://www.dropbox.com/s/ohyz16tyh4v4ojh/shift-arrow-issue.mp4?dl=0
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the Shift+Left Arrow behavior in Hyper with plugins disabled, using the screenshot and video linked in the issue as references. Trace the terminal's keyboard-input handling; the fix is complete when Shift+arrow selects text instead of inserting an escape-sequence-like string such as ;2D.
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Assessment
- Tech stack
- typescript
- Domain
- cli
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100