Penguin Mercenary and Ship Upgrade Bug

Hey I just wanted to report a quick bug I found in Starbound while getting mercenaries. I was getting impatient and clicked "e" button on the penguins multiple times and multiple menus popped up for hiring them to become my crew were created. I then spammed the Hire button as many times as I could until all the menus disappeared. The issue arises to the fact that I only had 1 Penguin dubloon and it let me hire around 4 or 5 at once. Not only is that a way to bug your way into free crew members, but I was also give the ship upgrade even though I shouldn't have been able to get that all with 1 dubloon. I did this three times to make sure it was definitely a bug and it worked every time. I have never used any mods either so that was out of the question. I was also in full screen mode at the time. I just wanted to bring this up so it could be fixed, Thanks .

Information :

Operating system name and version : Windows 8