eeschema: don't crash on new sheet

Fixes: https://gitlab.com/kicad/code/kicad/-/issues/19122
11 months ago · 508169e335
1 changed files with 1 additions and 1 deletions
--- a/eeschema/dialogs/dialog_sheet_properties.cpp
+++ b/eeschema/dialogs/dialog_sheet_properties.cpp
@ -513,7 +513,7 @@ bool DIALOG_SHEET_PROPERTIES::onSheetFilenameChanged( const wxString& aNewFilena
            }
        }
        // If we are drawing a sheet from a design block/sheet import, we need to copy the sheet to the current directory.
-        else if( m_sourceSheetFilename )
+        else if( m_sourceSheetFilename && !m_sourceSheetFilename->IsEmpty() )
        {
            loadFromFile = true;