fixes building more than 1 grille per turf

rapidly triggering attack_self() enabled building more than 1 per turf,
which is fairly abusive and not indended.
Added a forced, immediate refresh of the icons after the character is made.

This eliminates a race condition between spawning in and the icon cache being updated to include the body.
Merge pull request #6034 from JimTheCactus/uncached_icon_fix

Added a forced, immediate refresh of the icons after the character is made
Merge pull request #6021 from Walter0o/rods_fix

fixes building more than 1 grille per turf
Merge branch 'master' of https://github.com/Baystation12/Baystation12