ZSH renders strange % symbol *only* upon startup
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Description
- I am on the latest Hyper.app version
- I have searched the issues of this repo and believe that this is not a duplicate
- OS version and name: macOS Big Sur 11.4 (20F71)
- Hyper.app version: Hyper 3.1.0-canary.5 (stable)
Issue
I've only been able to reproduce this in the following circumstances:
- Brand new Hyper bootup
- Using ZSH
Doesn't happen with Terminal.app

It happens even with vanilla .zshrc

▲ ~/ zsh --version 17ms
zsh 5.8 (arm-apple-darwin20.2.0)
Contributor guide
No contributing guide indexed for this repository
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 startup behavior on macOS Big Sur with Hyper 3.1.0-canary.5, ZSH, and a vanilla .zshrc, then compare it with Terminal.app. The issue is complete when the stray % symbol no longer appears during a fresh Hyper startup.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- zsh
- Domain
- desktop
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100