Let's not forget this shall be Ordinal search

Author: h3xds1nz

src/Microsoft.DotNet.Wpf/src/Shared/MS/Internal/ReflectionUtils.cs

@@ -54,7 +54,7 @@ internal static string GetAssemblyPartialName(Assembly assembly)
 
             ReadOnlySpan<char> nameSlice = fullName;
             // Skip any escaped commas in the name if present
-            int escapedComma = fullName.LastIndexOf("\\,");
+            int escapedComma = fullName.LastIndexOf("\\,", StringComparison.Ordinal);
             if (escapedComma != -1)
                 nameSlice = nameSlice.Slice(escapedComma + 2);