E_NOTICE viewing an activity that has no details contents
- Create an activity, e.g. a Meeting.
- Don't put anything in the details field.
- Save.
- Turn off popups at admin - customize - display prefs, or in the next step use right-click and view in new tab/window.
- View the activity.
Notice: Undefined index: details in CRM_Activity_Form_Activity->preProcess() (line 506 of .../CRM/Activity/Form/Activity.php).
I can do a PR.