Ucommerce not always updating Parent SKUs on variants

The team have just been caught out with this sneaky bug in the new Ucommerce Product GUI in version 9.4.2.21145 that we first spotted in 2021.

When editing a SKU on a parent product in the new GUI, it doesn’t update on the product's SKU on the variants. In the example below "Old Rosie T-shirt" was changed from WES9999290 to WES9999275 however if you look at the screenshot from the SQL data when called directly, the parent product is fine but the variants are still WES9999290.

You can validate this by using the old version of the editor which you can find in the top right:

All variants are updated and now the Variants have the correct parent SKU WES9999275: