Can't upload attachments when filename has a space (Accounting API)

[jacksorjacksor]

SDK you're using (please complete the following information):

• Xero.Api.SDK.Core v1.1.4
• Xero.NetStandard.Oauth2 v11.1.1

Describe the bug
Calling the Accounting Api's .CreateInvoiceAttachmentByFileNameAsync() method will fail if the filename contains a space.

Exception message:
Xero API error calling CreateInvoiceAttachmentByFileName: The resource you're looking for cannot be found.

Various special characters are mentioned in the docs as unusable, but spaces are not mentioned. I was able to upload the file via the UI Portal, but the same file would fail when using the API.

To Reproduce

1. Instantiate Accounting API.
2. Call .CreateInvoiceAttachmentByFileNameAsync() with a filename which contains a space
3. Receive exception

Expected behavior
File should be uploaded to invoice as attachment

[github-actions]

PETOSS-749

[github-actions]

Thanks for raising an issue, a ticket has been created to track your request

[phillipmunn]

This just burnt us as well when upgrading the library. Seems like a regression given it worked previously.