some unicodes freeze the terminal (WSL Bash)

[mknj]

Environment

Windows 18362
WSL 18362
Windows Terminal (Preview) Version: 0.8.10091.0
inside WSL: ubuntu 18.04.1 LTS (https://aka.ms/wsl-ubuntu-1804)

The following command freezes the terminal

cat bad

The content of the bad file

🦕🐈🐀🐁🐇🐕🐩🐨 🐿🦔🦇🐍🦅🦉🦆🐓🐔🦃🕊🐣🐤🐥🐦🐧🐋🐳🐬🦈🐟🐠🐡🐙🦑🦐🦀🐚🐌 🐢🦎🐊🙈🙉🙊🎠♘♞🐽🐾👣🎠🏇🐀🐃🐅🐇🐉🐍🐎🐐🐒🐓🐕🐖

The bad file can be created with the following command

echo 8J+mlfCfkIjwn5CA8J+QgfCfkIfwn5CV8J+QqfCfkKgg8J+Qv/CfppTwn6aH8J+QjfCfpoXwn6aJ8J+mhvCfkJPwn5CU8J+mg/CflYrwn5Cj8J+QpPCfkKXwn5Cm8J+Qp/CfkIvwn5Cz8J+QrPCfpojwn5Cf8J+QoPCfkKHwn5CZ8J+mkfCfppDwn6aA8J+QmvCfkIwg8J+QovCfpo7wn5CK8J+ZiPCfmYnwn5mK8J+OoOKZmOKZnvCfkL3wn5C+8J+Ro/CfjqDwn4+H8J+QgPCfkIPwn5CF8J+Qh/CfkInwn5CN8J+QjvCfkJDwn5CS8J+Qk/CfkJXwn5CWCg== | base64 -d >bad

[mknj]

most unicode characters work fine, it seems to be the combination or length of these chararacters that causes the problem

[vogsphar]

may be duplicate of #678

[j4james]

This doesn't happen in the master build anymore. I believe it was fixed by PR #4150.

[zadjii-msft]

@j4james that sure makes sense to me. Thanks for trying it out! I'll just close this as a dupe then.

/dupe #1360

[ghost]

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!