I got a report form several users which are complaining that the email notifications received from jira do contain links that do open the issues with the all tabs visible, instead of not specifying the tab (if the link is simple jira will display the last used tab, something that is usually what people do want).
It seems that at least one of these notifications happens when someone adds an attachments:
https://jira.domain.tlg/browse/KEY-1234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
Shortly, all-tabpanel is something that is not desired and I see no reason for specifying a specific tab, at least in this case.
Note: please understand that here we are talking about big-issue ones with LOTS of activity in them.