Hold my sides (#829)

Author: uecasm

src/main/java/com/ldtteam/structurize/blocks/schematic/BlockSubstitution.java

@@ -35,7 +35,8 @@ public static Properties defaultSubstitutionProperties()
             .sound(SoundType.WOOD)
             .instabreak() // must be before explosionResistance
             .explosionResistance(Blocks.OAK_PLANKS.getExplosionResistance())
-            .noOcclusion();
+            .noOcclusion()
+            .forceSolidOff();
     }
 
     @Override
@@ -57,4 +58,11 @@ public VoxelShape getCollisionShape(BlockState state, BlockGetter blockGetter, B
 
         return super.getCollisionShape(state,blockGetter,blockPos,context);
     }
+
+    @Override
+    public VoxelShape getBlockSupportShape(BlockState state, BlockGetter worldIn, BlockPos pos)
+    {
+        // Allow torches etc to be placed on the faces regardless of collision shape
+        return Shapes.block();
+    }
 }