The following bug has been logged on the website:
Bug reference: 15973
Logged by: Rishi Kothari
Email address: rishi(dot)p(dot)kothari(at)gmail(dot)com
PostgreSQL version: 10.9
Operating system: Linux
Description:
When using the import/export dialog and using the file browser to select a
file to upload for import, sorting the contents of the dialog by size
results in a text sort, making "1.2 MB" smaller than "2 GB", for instance.