Merge pull request 'B2024-061- Added a null reference check in the save annotation code. Need for when Admin deletes the annotation while a user modified the text of it' (#394) from B2024-061 into Development

null reference check added to the code, tested locally before uploading

PROMS/Volian.Controls.Library/AnnotationDetails.cs

@@ -673,6 +673,8 @@ namespace Volian.Controls.Library
 				else
 				{
 					using (Annotation annotation = CurrentAnnotation.Get())
+					{
+						if (annotation != null) // B2024-061 check for null reference
 						{
 							annotation.RtfText = rtxbComment.Rtf;
 							annotation.SearchText = rtxbComment.Text;
@@ -683,6 +685,7 @@ namespace Volian.Controls.Library
 						}
 					}
 				}
+			}
 			AnnotationDirty = false;
 			UpdateAnnotationGrid();
 			AnnotationTypeInfoList.Reset();		// B2018-135: refresh annotation type list to update when annotations are used.