3.2.12 There is tagRender usage in the Cascader component API, but there is no actual demo, please add

[linfanxxxx]

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

补充Cascader的tagRender使用demo

What does the proposed API look like?

补充demo

[webvs2]

Attention, really in the repair

[webvs2]

#5954 have prepared,Give it a thumbs up if it works,add document instance was added

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.