[release/9.0-staging] Don't throw PendingModelChangesWarning when applying a specific migration #35353
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Fixes #35342
Port of #35343
Improvement of #35221
Description
In 9.0 we added a runtime warning that would throw by default when updating the database if there are any changes detected in the model that aren't reflected in the latest migration.
However, when applying a specific migration this warning is not relevant and could be confusing.
Customer impact
The workaround is to ignore the warning using options.
How found
Customer report on 9, part of a large stream of feedback around this warning.
Regression
Yes, from 8.
Testing
Test added
Risk
Low.