Fix missing dependency upgrade when changing image to/from sequence.

Since animation is now handled by the dependency graph.

source/blender/makesrna/intern/rna_image.c

@@ -29,6 +29,7 @@
 #include "BKE_image.h"
 
 #include "DEG_depsgraph.h"
+#include "DEG_depsgraph_build.h"
 
 #include "RNA_access.h"
 #include "RNA_define.h"
@@ -94,6 +95,7 @@ static void rna_Image_source_set(PointerRNA *ptr, int value)
 		BKE_image_signal(G_MAIN, ima, NULL, IMA_SIGNAL_SRC_CHANGE);
 		DEG_id_tag_update(&ima->id, 0);
 		DEG_id_tag_update(&ima->id, ID_RECALC_EDITORS);
+		DEG_relations_tag_update(G_MAIN);
 	}
 }