Fix the issue where `can()` check returns `false` even when the command can be executed.

[guanriyue]

Changes Overview

Fix the issue where can() check returns false even when the command is actually executable.

Implementation Approach

When chainCommand is executed, multiple commands are run sequentially. The editor state used by later commands may depend on the preceding commands. Therefore, when executing can(), createChain must ensure that shouldDispatch is true to prevent skipping operations on tr.

This fix effectively reverts the code changes from the pull request https://github.com/ueberdosis/tiptap/pull/3026 and resolves the issue https://github.com/ueberdosis/tiptap/issues/3025 caused by the clearNodes error.

At the same time, it will also fix issue https://github.com/ueberdosis/tiptap/issues/3229 and issue https://github.com/ueberdosis/tiptap/issues/4057.

————————————————————————————————————————————————————

For more details, please refer to this issue https://github.com/ueberdosis/tiptap/issues/5721.

Testing Done

In the example default editor, add the disabled attribute to the heading and list action buttons. Before the change, if the cursor was positioned on a heading node, the list action buttons would remain disabled, even though the commands were actually available. After the change, the list action buttons will be displayed as enabled.

Verification Steps

None.

Additional Notes

Checklist

• [ ] I have created a changeset for this PR if necessary.
• [x] My changes do not break the library.
• [ ] I have added tests where applicable.
• [x] I have followed the project guidelines.
• [x] I have fixed any lint issues.

Related Issues

• https://github.com/ueberdosis/tiptap/issues/5721
• https://github.com/ueberdosis/tiptap/issues/3229
• https://github.com/ueberdosis/tiptap/issues/4057
• https://github.com/ueberdosis/tiptap/issues/3025

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Latest commit: 072ef6d3f5de48993ec5541fb199d68ef99d02ab

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[nperez0111]

@guanriyue did you mean to close this? I hadn't had the chance to review it

[guanriyue]

Yes, I confirm that I want to close this PR. I reevaluated the situation and created a new PR https://github.com/ueberdosis/tiptap/pull/5744, adding corresponding test cases to ensure that the changes are correct.