this time really fix #632 (previous commit was for #630).

pisi/operations.py

@@ -187,6 +187,13 @@ def install_pkg_names(A):
         ctx.ui.info(_('No packages to install.'))
         return
 
+    if ctx.config.get_option('ignore_dependency'):
+        # simple code path then
+        for x in A:
+            atomicoperations.install_single_name(x)
+        return # short circuit
+
+    
     # try to construct a pisi graph of packages to
     # install / reinstall