The fetch() method for git will call git fetch --all ; this causes
issues when user has multiple remotes. We are able to simply call
'fetch' because by default the origin remote will be used.
From git help fetch:
> When no remote is specified, by default the origin remote will be
used, unless there's an upstream branch configured for the current
branch.
Signed-off-by: Nathan Genetzky <nathan@genetzky.us>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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