# Pull Request Template
## Description
This PR fixes the CC/BCC field reset issue on activity action.
Fixes
[CW-4256](https://linear.app/chatwoot/issue/CW-4256/emails-added-in-cc-and-bcc-disappears-when-you-click-on-assign-to-me),
#5234
### Cause of the Issue
Previously, the CC and BCC fields in the reply box were being reset
whenever a conversation activity occurred (such as assignment, status
change, etc.). This happened because watchers on the current chat
messages array and current chat object would trigger
`setCCAndToEmailsFromLastChat` even when the last message was an
activity or system message, not a real email.
### Solution
- The updated logic ensures that the CC and BCC fields are only set
under the following conditions:
**1**. Switching to a new conversation.
**2**. In the same conversation, only if the last message is not an
activity (i.e., only for actual emails).
- It uses the `lastEmail` computed property, which filters out private
and activity messages, ensuring only real email context changes update
the fields.
- This prevents user-entered `CC/BCC` values from being cleared after
system events (e.g., assignments or status changes), while still
updating the fields correctly when relevant messages are received.
## Type of change
- [x] Bug fix (non-breaking change which fixes an issue)
## How Has This Been Tested?
### Loom video
**Before**
https://www.loom.com/share/2ec50dd1c0ed4eaf9170465274bea41e?sid=cc8b88cb-fd39-473a-8df3-78a242c8407b
**After**
https://www.loom.com/share/17fd2d96d5d84a049dcbf20d401d2ada?sid=8949ad48-7769-49d2-92c5-267da8c60d6e
## Checklist:
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules
c24a6dc74c