Try if this does the same thing

Author: vmcj

webapp/Makefile

@@ -31,14 +31,9 @@ install-domserver:
 # This must be done first to install with the rest.
 	$(MAKE) copy-bundle-assets
 	$(INSTALL_DIR) $(DESTDIR)$(domserver_webappdir);
-	for d in bin config migrations public resources src templates tests; do \
+	for d in bin config migrations public resources src templates tests vendor; do \
 		$(call install_tree,$(DESTDIR)$(domserver_webappdir),$$d) ; \
 	done
-	for i in vendor/* ; do \
-		$(call install_tree,$(DESTDIR)$(domserver_webappdir)vendor,$$i) ; \
-	done
-	echo $(DESTDIR)$(domserver_webappdir)vendor
-	echo "Hook"
 	$(call fix_composer_paths,$(DESTDIR)$(domserver_webappdir)vendor)
 # Change webapp/public/doc symlink
 	rm $(DESTDIR)$(domserver_webappdir)/public/doc