Double clicking on nodes with active marks don't work properly - Firefox

[bishoymelek]

Description
double click on a word which has a different mark from the rest of the line, will consider it to be an active mark when testing in firefox.

Recording

Sandbox
Test it here in the example

Steps
To reproduce the behavior:

1. Go to sandbox
2. Double click on a word
3. Mark the word with bold
4. select any normal text, it should let the mark inactive (that works 👍)
5. then double click again on the first word we used, the mark we used should be active (doesn't work)
6. if you clicked on the mark again, nothing changes (an error)

Environment

• Slate Version: [e.g. 0.62.0]
• Operating System: [e.g. Mac OS]
• Browser: [e.g. FireFox]

[imdbsd]

im facing this issue and when try to debug it, domSelection is difference between firefox and chrome. https://github.com/ianstormtaylor/slate/blob/main/packages/slate-react/src/components/editable.tsx#L488. The domSelection is return a same object if select it with shit + arrow. Still searching for the workaround and fix.

[ppvolto]

The main Problem on Firefox is when you double click a leaf in a sequence of leafs, the Selection is from the End of the leading leaf and the Beginning of the tailing leaf what is OK, but it ignores or can not get the leaf in-between. Hand selecting the leaf works.