mmd_resolver: store alternatives per source package
Input:
* (c0) gtk: [1] + foo: [1]
* (c1) gtk: [1] + foo: [1, 2]
Before:
* c0 + gtk:1 + foo:1
* c1 + gtk:1 + foo:2
After:
* c0 + gtk:1 + foo:1
* c1 + gtk:1 + foo:1
* c1 + gtk:1 + foo:2
Acked-by: Jan Kaluža <jkaluza@redhat.com>
Signed-off-by: Igor Gnatenko <ignatenko@redhat.com>