Fixed SV_SAMESPAWNSPOT behavior -- When enabled, use the p->mo->z. Otherwise, rely on ONCEILINGZ/FLOATRANDZ/ONFLOORZ w/ or w/o UsePlayerStartZ as previously done
- fixed: All powerup blend colors with an alpha of 0 were treated as 'has no color' for PowerupGivers.
Make the respawn invulnerability APowerInvulnerable persist through a ClearInventory by making it undroppable
Merge branch 'bug-46152' of https://github.com/kevans91/zdoom