Use cache for fetchObject

[snuyanzin]

This fixes #1285

no need to recalculate same values for different locales

before

Benchmark                                        Mode  Cnt     Score    Error   Units
LocalePerformanceBenchmark.en_fullname          thrpt   10  3160.491 ± 71.525  ops/ms
LocalePerformanceBenchmark.en_gb_fullname       thrpt   10    62.385 ±  6.717  ops/ms
LocalePerformanceBenchmark.en_gb_streetAddress  thrpt   10    46.018 ± 25.115  ops/ms
LocalePerformanceBenchmark.en_streetAddress     thrpt   10  2268.299 ± 37.201  ops/ms

after

Benchmark                                        Mode  Cnt     Score    Error   Units
LocalePerformanceBenchmark.en_fullname          thrpt   10  3168.236 ± 65.091  ops/ms
LocalePerformanceBenchmark.en_gb_fullname       thrpt   10  1829.919 ± 34.379  ops/ms
LocalePerformanceBenchmark.en_gb_streetAddress  thrpt   10  1154.528 ± 43.499  ops/ms
LocalePerformanceBenchmark.en_streetAddress     thrpt   10  2251.981 ± 30.529  ops/ms

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.00%. Comparing base (b37c566) to head (ac1deb3). Report is 204 commits behind head on main.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1288 +/- ## ============================================ - Coverage 92.35% 92.00% -0.35% - Complexity 2821 3087 +266 ============================================ Files 292 310 +18 Lines 5609 6029 +420 Branches 599 628 +29 ============================================ + Hits 5180 5547 +367 - Misses 275 330 +55 + Partials 154 152 -2 ```

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