What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:
/kind bug
/kind task
/kind feature

What does this PR do / why do we need it:
Fixes the issue that watchpoints in multigraph models could not be hit.

Which issue(s) this PR fixes:

Fixes #[DEBUG] Offline debugger can't check watchpoint for multigraphs
https://e.gitee.com/mind_spore/issues/list?issue=I401L9

Special notes for your reviewers: