Protect against no valid assets selected

src/view/com/composer/SelectMediaButton.tsx

@@ -185,6 +185,12 @@ function classifyImagePickerAsset(asset: ImagePickerAsset):
     type = 'image'
   }
 
+  console.log({
+    asset,
+    type,
+    mimeType,
+  })
+
   /*
    * If we weren't able to find a valid type, we don't support this asset.
    */
@@ -301,6 +307,7 @@ async function processImagePickerAssets(
     })
   }
 
+  if (supportedAssets.length > 0) {
     if (selectableAssetType === 'image') {
       if (supportedAssets.length > selectionCountRemaining) {
         errors.add(SelectedAssetError.MaxImages)
@@ -350,6 +357,7 @@ async function processImagePickerAssets(
         supportedAssets = supportedAssets.slice(0, 1)
       }
     }
+  }
 
   return {
     type: selectableAssetType!, // set above