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Ignore possible nulls in NotifyCollectionChangedArgs
Safe to access by the virtue of the preceding case labels on `args.Action`. And they're in test code anyways.
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@ -13,6 +13,7 @@ using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Sprites;
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using osu.Framework.Extensions.IEnumerableExtensions;
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using osu.Framework.Bindables;
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using osu.Framework.Extensions.ObjectExtensions;
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using osu.Game.Graphics.Sprites;
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using osu.Game.Rulesets;
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using osu.Game.Rulesets.Mods;
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@ -45,14 +46,14 @@ namespace osu.Game.Tests.Visual.Online
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switch (args.Action)
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{
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case NotifyCollectionChangedAction.Add:
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args.NewItems.Cast<Mod>().ForEach(mod => selectedMods.Add(new OsuSpriteText
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args.NewItems.AsNonNull().Cast<Mod>().ForEach(mod => selectedMods.Add(new OsuSpriteText
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{
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Text = mod.Acronym,
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}));
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break;
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case NotifyCollectionChangedAction.Remove:
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args.OldItems.Cast<Mod>().ForEach(mod =>
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args.OldItems.AsNonNull().Cast<Mod>().ForEach(mod =>
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{
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foreach (var selected in selectedMods)
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{
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