quick registration does not increment sys number
The last svn and git (4586) versions does not include auto increment ov FOG_QUICKREG_SYS_NUMBER in Registration.class.php.
So, when you quick register second host, it cannot because the name exists and it delete the previous one too (why?).
< //increment quickreg system number
< $this->FOGCore->setSetting(FOG_QUICKREG_SYS_NUMBER,$autoRegSysNumber + 1);
Hope this helps
Thanks for reporting. This is now fixed.