[Case 1168633] BundlePackingMode.PackTogetherByLabel won't work

BundlePackingMode.PackTogetherByLabel should create a bundle per unique set of labels, but it creates a bundle per asset.

BundleScriptPackedModel line 376,

Code (CSharp):

1. foreach (var entryGroup in labelTable)
2. {
3.     foreach (var a in entryGroup.Value)
4.     {
5.         var allEntries = new List<AddressableAssetEntry>();
6.         a.GatherAllAssets(allEntries, true, true);
7.         GenerateBuildInputDefinitions(allEntries, bundleInputDefs, assetGroup.Name, entryGroup.Key);
8.     }
9. }

Fix,

Code (CSharp):

1. foreach (var entryGroup in labelTable)
2. {
3.     var allEntries = new List<AddressableAssetEntry>();
4.     foreach (var a in entryGroup.Value)
5.         a.GatherAllAssets(allEntries, true, true);
6.     GenerateBuildInputDefinitions(allEntries, bundleInputDefs, assetGroup.Name, entryGroup.Key);
7. }