Peter Josef Scheibel 587c650b88 Mirrors: skip attempts to fetch BundlePackages ... BundlePackages use a noop fetch strategy. The mirror logic was assuming that the fetcher had a resource to cach after performing a fetch. This adds a special check to skip caching if the stage is associated with a BundleFetchStrategy. Note that this should allow caching resources associated with BundlePackages.		2019-12-23 23:03:10 -08:00
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spack	Mirrors: skip attempts to fetch BundlePackages	2019-12-23 23:03:10 -08:00