When shooting power-hammer, it's ammo count does not decrease.
similar bug got fixed in 5a7dd02f7673da179dce1e9540d186d9c51a48eb

@ 49e68f76afb35f127b86944e334384dc4e0b1baa

I can not reproduce (@ 90b0bc7)

Can you check, matthias ?

Hmm I can still reproduce this.

What did you do to (not) reproduce, fluzz?

I cannot reproduce this issue as well. The ammo count decreases with every hit.

"every hit" Ahhaa!

What I did was just shoot it "randomly in the air" which does not reduce ammo count.

So the ammo is only removed when we actually aim at an enemy.
I'd say it still is a bug, but I am open for discussion.

Then, there is also question if melee weapons should lose durability when
shooting randomly in the air. Should it affect other melee weapons which do not
require ammo?

I'm not sure if we should change this behavior. It doesn't give anything. I just
see it as a fast way to lose ammo and potentially damage weapons.

In my opinions, any ammo-weapon should use ammo and loose durability whenever
fired, regardless of hitting anything, it is the explosion inside the gun/the
acceleration of projectiles which is causing wear-down, and for the gun, it
doesn't really matter what happens to the projectile afterwards.

See http://rb.freedroid.org/r/2221/ for a fix.

Fixed in commit f93d3a6