GP-6940 - Fixed a bug in function editor namespace combo box when tabbing from signature

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/function/editor/FunctionDataView.java

@@ -17,6 +17,7 @@ package ghidra.app.plugin.core.function.editor;
 
 import java.util.*;
 
+import generic.json.Json;
 import ghidra.program.model.data.VoidDataType;
 import ghidra.program.model.lang.PrototypeModel;
 import ghidra.program.model.listing.*;
@@ -80,6 +81,11 @@ class FunctionDataView {
 		callFixupName = otherFunctionData.callFixupName;
 	}
 
+	@Override
+	public String toString() {
+		return Json.toString(this);
+	}
+
 	@Override
 	public boolean equals(Object obj) {
 		if (!(obj instanceof FunctionDataView otherFunctionData)) {

Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/function/editor/FunctionEditorModel.java

@@ -1050,8 +1050,16 @@ public class FunctionEditorModel {
 			// ignore
 		}
 
-		Namespace ns = createNamespace(result.namespace());
+		// We allow the user to omit the namespace when parsing the signature.   If the value is 
+		// null, then don't change the current value.  Assume any non-null value is a valid choice.
+		Namespace ns = functionData.getNamespace();
+		SymbolPath nsPath = result.namespace();
+		if (nsPath != null) {
+			ns = createNamespace(result.namespace());
+		}
+
 		setFunctionData(ns, f);
+
 		isInParsingMode = false;
 	}