Set Parent to current query Item if ParentId is empty (#680)

**Changes**
Fixed a faulty change in logic that occurred during the Christmas GPL nightmare.

I stepped through Emby 3.5.2 and stumbled over a difference in the query between Jellyfin and Emby, where in Emby, query.ParentId was set to the item itself. So I did a little digging in the old GPLv2 source and found this https://github.com/MediaBrowser/Emby/blob/3.4.1.8/MediaBrowser.Controller/Entities/Folder.cs#L720

**Issues**
Fixes #673
pull/702/head
Claus Vium 6 years ago committed by Bond-009
parent bd550ef996
commit b2ffad9ce9

@ -644,12 +644,9 @@ namespace MediaBrowser.Controller.Entities
return PostFilterAndSort(items, query, true);
}
if (!(this is UserRootFolder) && !(this is AggregateFolder))
if (!(this is UserRootFolder) && !(this is AggregateFolder) && query.ParentId == Guid.Empty)
{
if (!query.ParentId.Equals(Guid.Empty))
{
query.Parent = this;
}
query.Parent = this;
}
if (RequiresPostFiltering2(query))

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