Synchronic Sales Unit at Project fast tab when the measurement unit has changed at the PR line

Currently the "Sales Unit" field in the Project fast tab will remain unchanged after user edit the "Unit" field at the PR line.

Simple scenario:

1. Add a new item in the PR line with the "Unit" = PCS
2. At [Line Details], go to [Project] fast tab and select any Project ID, notice that the "Sales unit" field will get updated with the UOM form the PR line which is PCS.
3. Back to the PR line and change the value in "Unit" field from PCS to EA. Notice that the value in "Sales unit" field remain unchanged. Still showing as PCS.

Please refer to TrackingID#2203300050003005 for the detail incident reported to Microsoft.