fix share lod, test=develop

paddle/fluid/operators/detection/box_coder_op.cc

@@ -77,10 +77,14 @@ class BoxCoderOp : public framework::OperatorWithKernel {
         PADDLE_ENFORCE_EQ(target_box_dims[2], prior_box_dims[1]);
         ctx->ShareDim("TargetBox", /*->*/ "OutputBox");
       }
-    }
 
+      if (code_type == BoxCodeType::kDecodeCenterSize && axis == 1) {
+        ctx->ShareLoD("PriorBox", /*->*/ "OutputBox");
+      } else {
         ctx->ShareLoD("TargetBox", /*->*/ "OutputBox");
       }
+    }
+  }
 };
 
 class BoxCoderOpMaker : public framework::OpProtoAndCheckerMaker {