Resolve "Bug prevents volume computation when data length column in Metadata DB is null"

Closes #462

added Bug scope::Backend status::Done labels

assigned to @mweise

added 8 commits

• 37fdd508...482b823b - 7 commits from branch release-1.5
• 20af8cab - Merge branch 'release-1.5' into...

Compare with previous version

enabled an automatic merge when the pipeline for 20af8cab succeeds

canceled the automatic merge

enabled an automatic merge when the pipeline for 20af8cab succeeds

mentioned in commit 77880e4e

merged