duplicated assets in the database when importing from local storage

[kharon-nd]

Hi,

When assets import from the Local File System than the duplicates of imported assets will created in database.
After importing new assets (for example an image) which didn't exist in database, database will create new record with wrong hash. And this asset (image) doesn't displayed on the page.

Steps to reproduce the behavior:

1. Export Wiki in a local folder (Dump all content to a disk)
2. Add any new asset in the local folder
3. Import data back to Wiki (Import Everything)
4. The asset’s duplicate will be created with different hashes.

Expected behavior
Asset 's duplicates must not exist.

Host Info:

• OS: Windows 7
• Wiki.js version: 2.1.107
• Database engine: MS SQL Server 12

Additional context
If I understand correctly the request loads assets from database by hash. These hashes are the sha-1 hashes and they are generated from asset’s relative path.
Duplicated assets in the database differ only by hashes. These hashes are generated from the equivalent, but not the same paths. These paths differ by seperators.

Examples:
folder/file.png hash ok, it works
folder\file.png wrong hash, broken link