BUGFIX: Copy/Paste across dimensions should not lead to error

Resolves: #4614

Author: skurfuerst

Classes/Domain/Model/Changes/CopyAfter.php

@@ -70,7 +70,9 @@ public function apply(): void
                 ),
                 $subject->workspaceName,
                 $subject,
-                OriginDimensionSpacePoint::fromDimensionSpacePoint($subject->dimensionSpacePoint),
+                // NOTE: in order to be able to copy/paste across dimensions, we need to use
+                // the TARGET NODE's DimensionSpacePoint to create the node in the target dimension.
+                OriginDimensionSpacePoint::fromDimensionSpacePoint($previousSibling->dimensionSpacePoint),
                 $parentNodeOfPreviousSibling->aggregateId,
                 $succeedingSibling?->aggregateId
             );

Classes/Domain/Model/Changes/CopyBefore.php

@@ -65,7 +65,9 @@ public function apply(): void
                 ),
                 $subject->workspaceName,
                 $subject,
-                OriginDimensionSpacePoint::fromDimensionSpacePoint($subject->dimensionSpacePoint),
+                // NOTE: in order to be able to copy/paste across dimensions, we need to use
+                // the TARGET NODE's DimensionSpacePoint to create the node in the target dimension.
+                OriginDimensionSpacePoint::fromDimensionSpacePoint($succeedingSibling->dimensionSpacePoint),
                 $parentNodeOfSucceedingSibling->aggregateId,
                 $succeedingSibling->aggregateId
             );

Classes/Domain/Model/Changes/CopyInto.php

@@ -74,7 +74,9 @@ public function apply(): void
                 ),
                 $subject->workspaceName,
                 $subject,
-                OriginDimensionSpacePoint::fromDimensionSpacePoint($subject->dimensionSpacePoint),
+                // NOTE: in order to be able to copy/paste across dimensions, we need to use
+                // the TARGET NODE's DimensionSpacePoint to create the node in the target dimension.
+                OriginDimensionSpacePoint::fromDimensionSpacePoint($parentNode->dimensionSpacePoint),
                 $parentNode->aggregateId,
                 null
             );