Tiptap: Suggestions demo only works with items with spaces

[klaasgeldof]

Describe the bug
The 'suggestions' demo does not work with items that do not contain any spaces.

Steps to Reproduce / Codesandbox Example
Steps to reproduce the behavior:

1. Go to the source code of the demo: https://github.com/ueberdosis/tiptap/blob/main/examples/Components/Routes/Suggestions/index.vue
2. Use the exact same code, but remove the space in one of the suggestions, for example change 'Sven Adlung' to 'SvenAdlung'.
3. Type '@' in the editor and choose the item without spaces
4. See the error in the console: 'TypeError: Cannot read property 'nodeType' of undefined'

Fork this or create a new Codesandbox replicating your error
https://codesandbox.io/s/vue-issue-template-forked-s1i2u => type @ and choose the first item (other items work without a problem)

Expected behavior
Same behavior as the items with spaces, obviously 😉

Screenshots

Environment

• OS: macOS
• Browser: Chrome
• Version: 87
• Mobile / Desktop: Desktop

[andreasvirkus]

@Priestch could it be something that's caused by the getTextBetween method in the Suggestions plugin? That's the latest change for Mentions https://github.com/ueberdosis/tiptap/commit/046babfd3a94222128f08cef653859ab66eaf3cd

[philippkuehn]

BTW: Today I finished the implementation of the suggestions plugin for tiptap 2. I found a different solution than used in #860. I added a custom clipboardTextSerializer so that you can override the text content of nodes. (This is probably only useful for atom nodes like mentions).

So this is definitely fixed in tiptap 2 🙌

[Priestch]

@andreasvirkus This issue only happens after commit 046babf, and I can not figure out the reason , it seems the doc content is broken after select some user.