[PE-D][Tester D] Stacking appointment bug

[nus-pe-script]

Command passes even if patient already has 2 existing back to back appointments, which is not very realistic and does not fit well with the product

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Labels: type.FeatureFlaw severity.VeryLow
original: nicolengk/ped#2

[cmHuang777]

Personally, I feel this is a documentation issue where we should specify this is not a bug. I think how long the appointment is, is up to the clinic and we should provide them the flexibility to input that themselves. However, may be we can have a 5 minutes buffer instead, but this requires more discussion.

[cmHuang777]

As discussed, we will just update UG to mention users are allowed to add appointments as long as they are not at the exact same time.