don't give a name to elements of metaop automatically if metaop has no name

src/operator/MetaOperatorDefs/PaddedConv.cpp

@@ -34,7 +34,9 @@ std::shared_ptr<Aidge::Node> Aidge::PaddedConv(Aidge::DimSize_t in_channels,
                                   bool no_bias)
 {
     auto metaOp = std::make_shared<Node>(PaddedConv_Op<DIM>(kernel_dims, stride_dims, padding_dims, dilation_dims), name);
-    std::static_pointer_cast<MetaOperator_Op>(metaOp->getOperator())->getMicroGraph()->setNodesName();
+    if (!name.empty()) {
+        std::static_pointer_cast<MetaOperator_Op>(metaOp->getOperator())->getMicroGraph()->setNodesName();
+    }
     addProducer(metaOp, 1, append(out_channels, append(in_channels, kernel_dims)), "w");
     if (!no_bias) {
         addProducer(metaOp, 2, {out_channels}, "b");

src/operator/MetaOperatorDefs/PaddedConvDepthWise.cpp

@@ -33,7 +33,9 @@ std::shared_ptr<Aidge::Node> Aidge::PaddedConvDepthWise(const Aidge::DimSize_t n
                                   bool no_bias)
 {
     auto metaOp = std::make_shared<Node>(PaddedConvDepthWise_Op<DIM>(kernel_dims, stride_dims, padding_dims, dilation_dims), name);
-    std::static_pointer_cast<MetaOperator_Op>(metaOp->getOperator())->getMicroGraph()->setNodesName();
+    if (!name.empty()) {
+        std::static_pointer_cast<MetaOperator_Op>(metaOp->getOperator())->getMicroGraph()->setNodesName();
+    }
     addProducer(metaOp, 1, append(nb_channels, append(Aidge::DimSize_t(1), kernel_dims)), "w");
     if (!no_bias) {
         addProducer(metaOp, 2, {nb_channels}, "b");