SvnLoaderFromRemoteDump: Fix failed visit which should be an uneventful visit
Due to a miscomputation of svn commit range at startup, the second visit of a SvnLoaderFromRemoteDump fails. It should be caught into an uneventful visit as nothing new happened in between visits.
Related to #3622 (closed)
Test Plan
tox
Migrated from D6376 (view on Phabricator)