fix: wrong selection of the latest snapshot (#304)

Description

• fix wrong selection of the latest snapshot:
  • change incorrect sign on comparing dataStateAt values
  • improve test cases
• extend structs of the clone list view for CLI

Related issue

#304 (closed)

Examples

Checklist

• the MR description has been reviewed
• this MR contains text changes and they have been reviewed OR there are no texts changes
• this MR contains GUI/CLI changes and they have been reviewed OR there are no GUI/CLI changes
• this MR contains API changes, specifications reflect those changes and they have been reviewed OR there are no API changes

Closes #304 (closed)