[release-0.3 / sylva-1.6] Preserve existing stack ID and name in case of authentication failures

Francois Eleouetrequested to merge
cherry-pick-006fa1e9 into release-0.3

Preserve existing stack ID and name in case of authentication failures

Backport of !349 (merged)

Closes sylva-projects/sylva-core#3712 (closed)

Edited by Francois Eleouet

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