Julian Foad created SVN-4890:
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Summary: multi-wc-format: should we forbid upgrading an external
WC to mismatch its parent WC format?
Key: SVN-4890
URL: https://issues.apache.org/jira/browse/SVN-4890
Project: Subversion
Issue Type: Improvement
Reporter: Julian Foad
Daniel Shahaf wrote, in dev@ email "multi-wc-format: upgrading externals":
multi-wc-format/BRANCH-README mentioned this:
> [*] New externals working copies must inherit the format from their
> parent working copy, because mixed-format working copies are a) a
> Bad Thing, and b) defeat the purpose of this feature, which is
> support for multiple versions of the client in the same working
> copy.
Upgrading a parent working copy upgrades external wc's too. However,
upgrading an external succeeds. Judging by the quoted remark, should
«svn upgrade --compatible-version=$N /path/to/external» error out unless
the external's parent working copy is already at version $V?
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