We first noticed this after the migration to Qt 5.2 and using the Reminders app: in summary, when editing a note the application becomes unresponsive on the phone and the CPU goes to 100% on the desktop (there it's not too noticeable).
After a chat with mzanetti, this is related to an upstream patch that should have probably been implemented differently, and it's now reported in the upstream tracker [1].
This will affect every app using a sorted list on the phone
We first noticed this after the migration to Qt 5.2 and using the Reminders app: in summary, when editing a note the application becomes unresponsive on the phone and the CPU goes to 100% on the desktop (there it's not too noticeable).
After a chat with mzanetti, this is related to an upstream patch that should have probably been implemented differently, and it's now reported in the upstream tracker [1].
This will affect every app using a sorted list on the phone
[1] https:/ /bugreports. qt-project. org/browse/ QTBUG-37983