Similar to #9803 , we also don't want to update system metadata if exclude locality has already exist in the system metadata.

100K SpecialKeySpaceRobustness:

20230402-022130-zhewu_robustness_single-04a4fba40ca9d7d0 compressed=True data_size=32541672 duration=1720033 ended=100000 fail_fast=10 max_runs=100000 pass=100000 priority=100 remaining=0 runtime=0:38:09 sanity=False started=100000 stopped=20230402-025939 submitted=20230402-022130 timeout=5400 username=zhewu_robustness_single

100K random simulation test:

20230402-023555-zhewu_exclude_locality_all-380d791038bcc78f compressed=True data_size=47768723 duration=5009879 ended=100000 fail=2 fail_fast=10 max_runs=100000 pass=99998 priority=100 remaining=0 runtime=0:49:57 sanity=False started=100000 stopped=20230402-032552 submitted=20230402-023555 timeout=5400 username=zhewu_exclude_locality_all

The two failures are unrelated to this PR.

Code-Reviewer Section

The general pull request guidelines can be found here.

Please check each of the following things and check all boxes before accepting a PR.

• The PR has a description, explaining both the problem and the solution.
• The description mentions which forms of testing were done and the testing seems reasonable.
• Every function/class/actor that was touched is reasonably well documented.

For Release-Branches

If this PR is made against a release-branch, please also check the following:

• This change/bugfix is a cherry-pick from the next younger branch (younger release-branch or main if this is the youngest branch)
• There is a good reason why this PR needs to go into a release branch and this reason is documented (either in the description above or in a linked GitHub issue)