collection: fix empty filenames (introduced in f452786)

kidanger · Jun 9, 2023 · f7cf3ce · f7cf3ce
1 parent 66ec1ab
commit f7cf3ce
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/ImageCollection.hpp b/src/ImageCollection.hpp
@@ -54,7 +54,7 @@ class MultipleImageCollection : public ImageCollection {
 
     const std::string& getFilename(int index) const override
     {
-        if (index == 0)
+        if (index >= totalLength)
             return empty;
         int i = 0;
         while (index < totalLength && index >= lengths[i]) {