Set default value for "is_bundle" option to true for "auto_mapping" mode
merged branch rybakit/is_bundle2.1 (PR #7640)

This PR was submitted for the 2.1 branch but it was merged into the master branch instead (closes #7640).

Discussion
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Set default value for "is_bundle" option to true for "auto_mapping" mode

Commits
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c4a6467 Set default value for "is_bundle" option to true for "auto_mapping" mode