Don't switch from editable to breadcrumb mode when htting the Escape key.
Clients already implement their own ways to do this, or turn it off:
- Dolphin: F6 key, context menu, ctrl+L, Location Bar > Editable Location menu item
- Open/save dialogs: ctrl+L, context menu
- Gwenview: F6 key, context menu, excape key behavior is already disabled