Micro optimization related with cloning object

[arogachev]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌

[what-the-diff[bot]]

PR Summary

• Enhancement of createItem method in ItemsStorage.php The method has been modified to improve its operation. The setting of $description and $ruleName on items is now dependent on whether they're filled or null, thereby ensuring unnecessary blanks are not set. So, it's essentially a change to make filling information on items more efficient and error free.

• Removal and replacement of certain method chains The withDescription and withRuleName methods that were initially used in the createItem process have been eliminated. They've been replaced with conditional statements, thus streamlining the method and making it work better.

• Introduction of a return statement at the method's end To enhance visibility and traceability of changes, the updated createItem method now concludes its operation by giving back the updated item. The change boosts tracking and clarity for any operations done on an item.

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (11b289b) 96.18% compared to head (132c402) 96.20%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #49 +/- ## ============================================ + Coverage 96.18% 96.20% +0.01% - Complexity 149 151 +2 ============================================ Files 7 7 Lines 656 659 +3 ============================================ + Hits 631 634 +3 Misses 25 25 ``` | [Files](https://app.codecov.io/gh/yiisoft/rbac-db/pull/49?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=yiisoft) | Coverage Δ | | |---|---|---| | [src/ItemsStorage.php](https://app.codecov.io/gh/yiisoft/rbac-db/pull/49?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=yiisoft#diff-c3JjL0l0ZW1zU3RvcmFnZS5waHA=) | `100.00% <100.00%> (ø)` | |

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