Attachment extension is lowercased for no reason

[dumblob]

• Operating System (Linux/Mac/Windows/iOS/Android): Mac, Linux
• Delta Chat Version: 1.26.0 (git: v1.25.0-11-g3114f3d3)
• Expected behavior: the whole filename is untouched
• Actual behavior: the extension of filenames is lowercased before sending
• Steps to reproduce the problem:

1. create file teST00.Rmd (yes, R language requires files to have upper case R in related extensions 😮)
2. use DC desktop client to send the file to someone else
3. see in the message feed that the file was sent as teST00.rmd (notice the lowercased r instead of uppercased R)

Same thing happened with .R files.

• Screenshots: N/A
• Logs: N/A

I don't know if this is only a DC Desktop issue or DC Rust core issue, but I wanted to start low - therefore first here 😉.

[r10s]

i just played around:

• setting a draft with an .Rmd file is okay on android (tried wie share-to-delta) and already converts to lowercase on desktop (tried via drag'n'drop)
• on sending, however, it is converted to lowercase on both, desktop and android

so, there is maybe a core issue plus some additional desktop issue :)

nb: the filename may be extended by a number, this is another, already known issue.

[Simon-Laux]

probably only a core issue, there is no code that I know of that modifies the filename in desktop. in desktop the draft file is already saved in core and then displayed, so core had a chance to modify it.

[Simon-Laux]

already filed in core, nothing desktop can currently do about it. not that this is an issue desktop could solve, but moving to resurrection non the less for now.