parser CHANGE double submodule loading checks

Prevents loading a submodule more times.
diff --git a/src/parser_yin.c b/src/parser_yin.c
index ea5f9bd..bdc6555 100644
--- a/src/parser_yin.c
+++ b/src/parser_yin.c
@@ -6093,6 +6093,9 @@
         if (lyp_check_include_missing(module)) {
             goto error;
         }
+
+        /* remove our submodules from the parsed submodules list */
+        lyp_del_includedup(module);
     }
 
     if (revision) {