planetmaker opened the ticket and wrote:

The usage of load and save commands is inconsistant: one requires the filename extension, the other not:

!rcon save desync_debug
planetmaker: Saving map...
planetmaker: Map successfully saved to desync_debug.sav
!rcon load desync_debug.sav
(...)
Rubidium, one of the answers will be "so how to know which extension to choose, if there are savegames of different formats, but same name ;-)
or the other option: savegames without extension, if people forget :-P
I don't yet have an answer for that really
then it should say it's ambiguous

I prefer actually to skip the filename extension in the command and add the default .sav unless for a load command it's ambigeous.

Reported version: trunk
Operating system: All

This issue was imported from FlySpray: https://bugs.openttd.org/task/3761