Merge pull request #14839 from woocommerce/issue/WOOMOB-1389_customer_bug

[WOOMOB-1389] - Fix Upserting the WCCustomerModel

Author: AdamGrzybkowski

RELEASE-NOTES.txt

@@ -6,6 +6,7 @@
 - [Internal] Improve WebView experience by using Authenticated WebView for more scenarios [https://github.com/woocommerce/woocommerce-android/pull/14826]
 - [Internal] Update In-Person Payments setup flow to use Authenticated WebView [https://github.com/woocommerce/woocommerce-android/pull/14827]
 - [*] Improved the Filters button colors on the Orders and Products screens [https://github.com/woocommerce/woocommerce-android/pull/14832]
+- [*] Fixed an issue with inconsistent data on the Customers screen [https://github.com/woocommerce/woocommerce-android/pull/14839]
 - [*] Fixed an issue when images for the card reader flows were not shown on tablets [https://github.com/woocommerce/woocommerce-android/pull/14849]
 - [*] Fixed an issue where the count of the filters applied to the orders was not updated correctly [https://github.com/woocommerce/woocommerce-android/pull/14844]
 - [**] POS: Allow merchants to view, search, and manage POS orders directly within the POS interface. [https://github.com/woocommerce/woocommerce-android/pull/14866]