Fixes (3)

• 2023-08-11 #XCB-2661 (Navolykin Vladimir)

  Various issues related to updating from 5.4.1.x to 5.5.0.x. Fixed. #CDev-Core

• 2023-08-04 #XCB-2634 (Navolykin Vladimir)

  Vendor commission was calculated incorrectly with VAT included in the product price. Fixed. #CDev-VAT

• 2023-08-04 #XCB-2343 (Alexander Tcshurenko)

  The base for VAT calculation was determined incorrectly in some rare cases. Fixed. #CDev-VAT