When we have two submodules not agreeing on the prefix used to import a
module, we get a nasty splat from StatementPrefixResolver. Fix this by
detecting when this is happens and skip to full resolution magic.
JIRA: YANGTOOLS-1313
Change-Id: I99cc3ebc2f560590d05b51287d08429aaf7d6582
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
Signed-off-by: Dominik Vrbovsky <dominik.vrbovsky@pantheon.tech>
(cherry picked from commit
d08e5552beb9180f582bf419fdcf120052876411)