I have located a bug in the mail selection system which after deleting mails causes the next group of messages to appear as selected while in fact that is not the case.
Steps to reproduce
1. Select one or more messages but not all messages in the inbox
2. Click delete to delete the selected messages
3. The messages will be deleted but the next messages will appear to be selected
4. Attempt to click delete again to verify the checked messages are not in fact selected
Here is a screenshot showing what happens with the bug at step 4 above
One of two options would be valid here, either the selection check boxes are cleared or it does actually pre select the next group of messages fully. Either way it should not show mails as checked if they are not in fact selected.
I did some additional checking it seems that whatever the underlying cause the status of the tick box doesn\'t become inverted to actually select the mail requires 2 clicks one to clear the check box and one to check it again and actually select it.