Bug/1390 metadata always deletes folder of retrieved types before recreating it

[JoernBerkefeld]

PR details

What changes did you make? (Give an overview)

• closes [BUG] --metadata always deletes folder of retrieved types before recreating it #1390

Further details (optional)

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Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• test scripts updated
• Wiki updated (if applicable)

[github-actions]

Coverage Report

Commit:4218c07
Base: develop@745647d

Type	Base	This PR
Total Statements Coverage	68.69%	68.69%  (+0%)
Total Branches Coverage	67.82%	67.85%  (+0.03%)
Total Functions Coverage	79.61%	79.61%  (+0%)
Total Lines Coverage	68.69%	68.69%  (+0%)

Details (changed files):

File	Statements	Branches	Functions	Lines
lib/index.js	70.13%	58.98%	72.97%	70.13%