Fix deleting in column mode also delete an unexpected EOL

Fix #14426, close #14536

PowerEditor/src/ScintillaComponent/ScintillaEditView.cpp

@@ -592,7 +592,9 @@ LRESULT ScintillaEditView::scintillaNew_Proc(HWND hwnd, UINT Message, WPARAM wPa
 						if (nbCaseForScint)
 							_callWindowProc(_scintillaDefaultProc, hwnd, Message, wParam, lParam);
 
-						// then do our job, if any
+						// then do our job, if it's not column mode
+						if (!isColumnSelection)
+						{
 							for (const auto& i : edgeOfEol)
 							{
 								// because the current caret modification will change the other caret positions,
@@ -604,6 +606,7 @@ LRESULT ScintillaEditView::scintillaNew_Proc(HWND hwnd, UINT Message, WPARAM wPa
 								execute(SCI_SETSELECTIONNSTART, i._selIndex, posStart);
 								execute(SCI_SETSELECTIONNEND, i._selIndex, posStart);
 							}
+						}
 
 						execute(SCI_ENDUNDOACTION);