Do not pre-compute validation results

[nyurik]

If more than one validation rule apply to the same value, "fix" button only keeps the result of the last validation. For example, rule1 and rule2 match the same value, rule1 removes spaces, rule2 adds quotes. Clicking "fix" on both (either at once or one at a time) would produce the value in quotes, but still with the spaces, even though both validation errors would disappear from the validation panel. This shouldn't cause issues in theory, just some confusion.

I think it would be better to re-evaluate test condition and apply the fix before every fix is applied.