Observation:
The checking for description is case-sensitive. If the user change the description of a meeting at same time from lower case letters to upper case letters and add again, it is allowed.
Steps to reproduce:

Rationale behind:
Since description are only texts to describe the meeting, if their only difference is the letter cases, they are most likely to convey the same meaning. Therefore, it would be more reasonable to consider descriptions with the only difference in letter cases the same.
Command Involved meeting-add
Observation: The checking for description is case-sensitive. If the user change the description of a meeting at same time from lower case letters to upper case letters and add again, it is allowed.
Steps to reproduce:
Rationale behind: Since description are only texts to describe the meeting, if their only difference is the letter cases, they are most likely to convey the same meaning. Therefore, it would be more reasonable to consider descriptions with the only difference in letter cases the same.