Artifacts recharge at twice the speed and can spawn with an invalid recharge type

[Saicchi]

Describe the bug

Two bugs:

1. Artifacts can spawn with an invalid recharge type
2. Artifacts recharge at twice the speed

Steps To Reproduce

Reproducing 1st bug:

1. Go to the spawning section of the debug menu.
2. Spawn an artifact with "Spawn clairvoyance artifact".
3. Wield the artifact and open it in your save file.
4. Notice how artifact recharge type is 3 which correspondes to relic_recharge::num.
   This bug also extends to some artifacts spawned with "Spawn artifact", but I don't know if it happens with naturally spawned artifacts.

Reproducing 2nd bug:

1. Keep spawning random artifacts until you find one with with charges and a periodic recharge time.
2. Use one charge if artifact is at max charges.
3. Wield the artifact and check in your .sav file the recharge time ( "time" field ).
4. Optionally set it to 1 hour ( 3600 ) for easier testing.
5. Wait half the amount of turns in the "time" field, artifact recharges.

Expected behavior

1st bug:
Artifact recharge type should be relic_recharge::none instead of relic_recharge::num.

2nd bug:
Artifact recharges after waiting the exact amount of time.

Screenshots

None

Versions and configuration

• OS: Linux
  • OS Version:
• Game Version: 0.E-9884-g2f0f0585b4 [64-bit]
• Graphics Version: Tiles
• Game Language: English [en]
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Bionic Professions [package_bionic_professions],
  Magiclysm [magiclysm]
  ]

Additional context

None

[Saicchi]

For the 1st bug, the default value of relic_recharge type in src/relic.h:136 is relic_recharge::num. It should probably be relic_recharge::none or prevent spawning of artifacts with the invalid relic recharge type.

[RedMisao]

I can confirm the second bug, an item with the following relic data:
"relic_data": { "charge_info": { "regenerate_ammo": true, "recharge_type": "periodic", "time": "30 s" } },
recharges itself every 15 seconds (pressing . fifteen times). Changed time to "2 s" and it recharges every second, then to "4 s" and it recharges every two seconds.

Note: editing the time value and reloading the character wielding the test item doesn't update the value, a new item has to be spawned for it to use the updated time value.