Clear any potential exceptions before Py_XDECREF

Co-authored-by: scoder <stefan_ml@behnel.de>

Author: jonathangreen

src/lxml.c

@@ -91,13 +91,13 @@ static int PyXmlSec_CheckLxmlLibraryVersion(void) {
     result = 0;
 
 FINALIZE:
+    // Clear any errors that may have occurred
+    PyErr_Clear();
+
     // Cleanup our references, and return the result
     Py_XDECREF(lxml);
     Py_XDECREF(version);
 
-    // Clear any errors that may have occurred
-    PyErr_Clear();
-
     return result;
 }