It shouldnt. But 10 years of experience with SE and their spaghetti-code tells me it's very possible it simply remains working.
On the other hand, if you have a job that is a higher level than your current job, you do get an EXP bonus to help you catch up to it. That could be it.
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[XI] Surivere of Valefor
[XIV] Sir Surian Bedivere of Behemoth
http://na.finalfantasyxiv.com/lodestone/character/2401553/