From 6f4ff48b99f7cb1ecc1d587e5af1f0c8cc631e2c Mon Sep 17 00:00:00 2001
From: Applin <robert.applin@stfc.ac.uk>
Date: Mon, 19 Aug 2024 15:50:03 +0100
Subject: [PATCH] Set property only if it exists in loader

---
 qt/widgets/spectroscopy/src/InelasticTab.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/qt/widgets/spectroscopy/src/InelasticTab.cpp b/qt/widgets/spectroscopy/src/InelasticTab.cpp
index defe52cd7f87..8c74a4aedeb3 100644
--- a/qt/widgets/spectroscopy/src/InelasticTab.cpp
+++ b/qt/widgets/spectroscopy/src/InelasticTab.cpp
@@ -42,6 +42,8 @@ std::string castToString(int value) { return boost::lexical_cast<std::string>(va
 template <typename Predicate>
 void setPropertyIf(const Algorithm_sptr &algorithm, std::string const &propName, std::string const &value,
                    Predicate const &condition) {
+  if (!algorithm->existsProperty(propName))
+    return;
   if (condition)
     algorithm->setPropertyValue(propName, value);
 }
@@ -127,9 +129,7 @@ void InelasticTab::exportPythonScript() {
  */
 bool InelasticTab::loadFile(const std::string &filename, const std::string &outputName, const int specMin,
                             const int specMax, bool loadHistory) {
-  const auto algName = loadHistory ? "Load" : "LoadNexusProcessed";
-
-  auto loader = AlgorithmManager::Instance().createUnmanaged(algName, -1);
+  auto loader = AlgorithmManager::Instance().createUnmanaged("Load", -1);
   loader->initialize();
   loader->setProperty("Filename", filename);
   loader->setProperty("OutputWorkspace", outputName);