Incompatible with bootstrap

[Banyc]

Bug Report

Steps to reproduce

1. Clone this repo .
2. Go to the branch e72a8df8828f6bcc1ed5301fad81a5cf7f76d9fa.
3. docsify serve docs.
4. Click the title that has subtitles in the sidebar twice.

What is current behaviour

When clicking the title that has subtitles in the sidebar twice, the title will disappear.

What is the expected behaviour

The title that was clicked should not disappear.

Other relevant information

• Bug does still occur when all/other plugins are disabled?

• Your OS:

• Node.js version:

• npm/yarn version:

• Browser version:

• Docsify version:

• Docsify plugins:

Please create a reproducible sandbox

Mention the docsify version in which this bug was not present (if any)

[Banyc]

Forgot to mention that the bootstrap is introduced in file index.html.

[sy-records]

collapse class name conflict.

You can add this css to index.html

.collapse:not(.show) {
    display: unset!important;
}