The absence of 
in GC (→GE) is probably an oversight of the copyist. It is also possible that Chopin added it in [A] already after having prepared the copy. In FE (→EE) the sign is only at the beginning of bar 33, which, according to us, follows from the necessity of choosing place for the sign written in [A] (partially) on the bar line. It is confirmed by placing the in the respective bar of the recapitulation (bar 220).
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Inaccuracies in FE, Errors of GC
notation: Verbal indications