[Bug] doris Multi database synchronization

### Search before asking

- [x] I had searched in the [issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and found no similar issues.

### Version

25.1.0

### What's Wrong?

I have two database tables

database1
a.a1
database2
b.b1
b.a1

I want to synchronize a.a1 and b.b1 now, but it seems impossible to synchronize b.a1 without it
I don't want to synchronize b.a1, but it conflicts with the a.a1 table name

### What You Expected?

a.a1 b.b1

### How to Reproduce?

_No response_

### Anything Else?

_No response_

### Are you willing to submit PR?

- [x] Yes I am willing to submit a PR!

### Code of Conduct

- [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)

Start with the reported database layout and the synchronization behavior in the issue: database1.a.a1, database2.b.b1, and database2.b.a1. No source files, tests, or entry points are identified, so first locate the multi-database synchronization path and reproduce the table-name conflict. Done means a.a1 and b.b1 synchronize without requiring b.a1.

Written by the indexing model from the issue text.