[If] someone betroths with his portion, whether from the most holy offerings or offerings of lesser holiness, she is not betrothed; with the second tithe, whether inadvertently or intentionally, the kiddushin is not valid; [these are] the words of R’ Meir. R’ Yehudah says: [If] inadvertently, the kiddushin is not valid; [if] intentionally, it is valid.  And with hekdesh: [if] intentionally, the kiddushin is valid; [if] inadvertently, it is not valid. [These are] the words of R’ Meir. R’ Yehudah says: [If] inadvertently, it is valid; [if] intentionally, it is not.