Bad interpretation of multiple deeplink hosts?

[Stefano Gioia]

When there are multiple hosts declared, the current behaviour is to create one intent filter, with multiple data elements:

<intent-filter android:autoVerify="true">
    <action android:name="android.intent.action.VIEW" />
    <category android:name="android.intent.category.DEFAULT" />
    <category android:name="android.intent.category.BROWSABLE" />
    <data android:scheme="$DEEPLINK_SCHEME" android:host="$DEEPLINK_HOST" android:pathPrefix="$ANDROID_PATH_PREFIX" />
  <data android:scheme="$DEEPLINK_2_SCHEME" android:host="$DEEPLINK_2_HOST" android:pathPrefix="$ANDROID_2_PATH_PREFIX" />
  <data android:scheme="$DEEPLINK_3_SCHEME" android:host="$DEEPLINK_3_HOST" android:pathPrefix="$ANDROID_3_PATH_PREFIX" />
  <data android:scheme="$DEEPLINK_4_SCHEME" android:host="$DEEPLINK_4_HOST" android:pathPrefix="$ANDROID_4_PATH_PREFIX" />
  <data android:scheme="$DEEPLINK_5_SCHEME" android:host="$DEEPLINK_5_HOST" android:pathPrefix="$ANDROID_5_PATH_PREFIX" />
</intent-filter>

However, my take is that this results in unexpected behavior when what one wants is to allow multiple deeplinks from different hosts and paths.

From the docs:

Although it's possible to include multiple <data> elements in the same filter, 
it's important that you create separate filters when your intention is to declare 
unique URLs (such as a specific combination of scheme and host), because multiple 
<data> elements in the same intent filter are actually merged together to account 
for all variations of their combined attributes.

E.g

If I were to write something like

  <intent-filter>
    <data host="foo.com" pathPrefix="/" />
    <data host="bar.com" pathPrefix="baz" />
   </intent-filter>

I would expect to only allow deeplinks from foo.com/... and bar.com/baz...., but the actual behavior is that we're allowing:

foo.com/..., foo.com/baz...., bar.com/..., and bar.com/baz....

I'm guessing the solution here is to simply create multiple intent filters for each deeplink variable combo.