Closes#15411Closes#16335
BREAKING CHANGE:
the 'default' key in 'debounce' now only debounces the default event, i.e. the event
that is added as an update trigger by the different input directives automatically.
Previously, it also applied to other update triggers defined in 'updateOn' that
did not have a corresponding key in the 'debounce'.
This behavior is now supported via a special wildcard / catch-all key: '*'.
See the following example:
Pre-1.7:
'mouseup' is also debounced by 500 milliseconds because 'default' is applied:
```
ng-model-options="{
updateOn: 'default blur mouseup',
debounce: { 'default': 500, 'blur': 0 }
}
```
1.7:
The pre-1.7 behavior can be re-created by setting '*' as a catch-all debounce value:
```
ng-model-options="{
updateOn: 'default blur mouseup',
debounce: { '*': 500, 'blur': 0 }
}
```
In contrast, when only 'default' is used, 'blur' and 'mouseup' are not debounced:
```
ng-model-options="{
updateOn: 'default blur mouseup',
debounce: { 'default': 500 }
}
```
Martin Staffa
55ba44913e