The absence of the 
asterisk after 
at the beginning of bar 75 in A is probably a result of corrections of the part of the L.H. in both discussed bars – cf. bars 75-76. It is highly likely that the sign in A was written at the end of bar 75, whereas the bass note at the beginning of bar 76 was a g. Return to g
and other changes made Chopin delete this sign, however, no other was introduced instead. In FE (→GE,EE) the sign was reinstated in the place where Chopin deleted it, which suggests that it was a routine revision activity. The need for a longer sustention of pedal is supported by, according to us, the change introduced in the proofreading of FE, as a result of which the repetition of the bass note in bar 76 was eliminated. In this case, in the main text we do not include the sign in FE, concerning another version, but we suggest holding the pedal until the end of bar 76.
The new pedal in bar 76 is an arbitrary addition of the reviser of #GE3no2.
Compare the passage in the sources»
category imprint: Differences between sources; Editorial revisions; Corrections & alterations
issues: FE revisions
notation: Pedalling