Make sure that #transformContent can only be set to true on items that actually support it.

src/item/Item.js

@@ -54,6 +54,7 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 	// All items apply their matrix by default.
 	// Exceptions are Raster, PlacedSymbol, Clip and Shape.
 	_transformContent: true,
+	_canTransformContent: true,
 	_boundsSelected: false,
 	_selectChildren: false,
 	// Provide information about fields to be serialized, with their defaults
@@ -1173,8 +1174,7 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 	},
 
 	setTransformContent: function(transform) {
-		this._transformContent = !!transform;
+		if (this._transformContent = this._canTransformContent && !!transform)
-		if (transform)
 			this.applyMatrix();
 	},
 
@@ -1987,7 +1987,7 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 				// and the child has not its onw setting already.
 				if (item._transformContent ^ transformContent
 						&& !item.hasOwnProperty('_transformContent'))
-					item.setTransformContent(transformContent)
+					item.setTransformContent(transformContent);
 				// Setting the name again makes sure all name lookup structures
 				// are kept in sync.
 				if (item._name)
@@ -2841,9 +2841,9 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 			// Reset the internal matrix to the identity transformation if it
 			// was possible to apply it.
 			matrix.reset(true);
-		}
 			if (!_dontNotify)
 				this._changed(/*#=*/ Change.GEOMETRY);
+		}
 		return this;
 	},
 

src/item/PlacedSymbol.js

@@ -21,6 +21,7 @@
 var PlacedSymbol = Item.extend(/** @lends PlacedSymbol# */{
 	_class: 'PlacedSymbol',
 	_transformContent: false,
+	_canTransformContent: false,
 	// PlacedSymbol uses strokeBounds for bounds
 	_boundsGetter: { getBounds: 'getStrokeBounds' },
 	_boundsSelected: true,

src/item/Raster.js

@@ -20,6 +20,7 @@
 var Raster = Item.extend(/** @lends Raster# */{
 	_class: 'Raster',
 	_transformContent: false,
+	_canTransformContent: false,
 	// Raster doesn't make the distinction between the different bounds,
 	// so use the same name for all of them
 	_boundsGetter: 'getBounds',

src/item/Shape.js

@@ -20,6 +20,7 @@
 var Shape = Item.extend(/** @lends Shape# */{
 	_class: 'Shape',
 	_transformContent: false,
+	_canTransformContent: false,
 	_boundsSelected: true,
 	_serializeFields: {
 		shape: null,