Fixed StaticSpriteBatch not resetting its texture when all items are removed

CHANGELOG.md

@@ -21,6 +21,9 @@ Additions
 Improvements
 - Allow comparing Keybind and Combination based on the amount of modifiers they have
 
+Fixes
+- Fixed StaticSpriteBatch not resetting its texture when all items are removed
+
 ### MLEM.Ui
 Additions
 - Added Element.AutoNavGroup which allows forming groups for auto-navigation

MLEM/Graphics/StaticSpriteBatch.cs

@@ -337,6 +337,8 @@ namespace MLEM.Graphics {
             if (!this.batching)
                 throw new InvalidOperationException("Not batching");
             if (this.items.Remove(item)) {
+                if (this.items.Count <= 0)
+                    this.texture = null;
                 this.batchChanged = true;
                 return true;
             }