Fix DXF importer wrongly prioritizes the MEASUREMENT variable

src/Mod/Import/App/dxf/dxf.cpp

@@ -2413,6 +2413,9 @@ bool CDxfRead::ReadUnits()
     int n = 0;
     if (sscanf(m_record_data, "%d", &n) == 1) {
         m_eUnits = eDxfUnits_t(n);
+        if (m_eUnits != eUnspecified) {
+            m_measurement_inch = false; // prioritize INSUNITS over MEASUREMENT variable
+        }
         return (true);
     }  // End if - then
     else {