Use deep clone so Indexer can handle existing branches #334
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Problem
We haven't had a full successful inflation pass in 2 days.
Cause
There are several pending pull requests at https://github.com/KSP-CKAN/CKAN-meta/pulls, and the Indexer keeps failing to push to them because it doesn't have the current state of their branches after restarting after KSP-CKAN/CKAN#4119 was merged. These attempts somehow overwhelm the container's volume credits, which eventually end up at 0.
See #303 and #315 for previous instances of the same issue for other services (except in those cases they were just failing, not overloading the volume credits and blocking the Scheduler from running).
Changes
Now the Indexer uses a deep clone of CKAN-meta, so the existing branches will be retrieved.