One of my coworkers, coworker A, recently lost a family member and is on leave. The details of the leave were not discussed with us. We were only informed of the death. I reached out to my coworker and expressed my condolences when we first found out.
Later, I emailed coworker A and another one (coworker B) to ask something quick about a small project they are working on together. What I am asking is indirectly related to another task I will engage in. I clearly indicated that I did not need a response from coworker A and that my email could be ignored by coworker A.
Coworker B, in their response to me only, suggested we leave coworker A off of "emails like this" (not sure exactly what that means) and that they would check in with coworker A to catch them up later.
My question is: If a coworker is on bereavement leave, should I leave them off all non-urgent work emails, even if I clearly indicate I do not require any action from them?
I checked online for guidance on these issues, but all I can find is what to say about the person's loss and mention of helping them with their workload, which is already done as my supervisor assigned many of their tasks to others. I don't see anything about leaving them off of conversations though.