two printer clients touching the same card request causes client to crash

Two cards are printed (one from each printer). The MIFARE_NUMBER for the slower client will not be returned to the Card API. As both card are identical (apart from the MIFARE_ID), there is a chance the card sent to the user will not match the card record stored in the Card API.

Related MR

• Printer client MR !21 (merged)
• Card API MR (removing update from 'start') https://gitlab.developers.cam.ac.uk/uis/devops/iam/card-database/card-api/-/merge_requests/149
• Card front-end changes https://gitlab.developers.cam.ac.uk/uis/devops/iam/card-database/card-frontend/-/merge_requests/85