No, Face ID takes another snapshot after the passcode has been entered.
Source: "Face ID takes another capture and augments its enrolled Face ID data" https://images.apple.com/business/docs/FaceID_Security_Guide...
Source: "Face ID takes another capture and augments its enrolled Face ID data" https://images.apple.com/business/docs/FaceID_Security_Guide...
Here's the entire quote:
"…if Face ID fails to recognize you, but the match quality is higher than a certain threshold and you immediately follow the failure by entering your passcode, Face ID takes another capture and augments its enrolled Face ID data with the newly calculated mathematical representation"