@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
RevisionPack that = (RevisionPack) o;
return myRevision.equals(that.getRevision());
}
public boolean contains(final RevisionPack previous) {
if (myRevision.equals(previous.getRevision()) && !myRevision.equals(VcsRevisionNumber.NULL))
return true;
return myNumber >= previous.getNumber();
}