Is 'git reset --soft' a no-op command?

Question

The documentation states that leveraging the --soft option "...Does not touch the index file nor the working tree at all, but requires them to be in a good order. This leaves all your changed files "Changes to be committed", as git status would put it".

It also explains that the target <commit> defaults to HEAD, when not given.

Considering these, does the following command modify anything at all?

$ git reset --soft

Answer 1

Considering these, does the following command modify anything at all?

No, it is a no-op.

After thinking about this for a bit: technically it will complain if you are in the middle of a merge with unresolved conflicts however all that this means is that instead of doing nothing, it complains and does nothing.