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b. 144-147

composition: Op. 2, Variations, complete

..

In AsI these bars are marked as a repetition of b. 136-139 (similarly, b. 148-149 are a repetition of b. 140-141). Admittedly, repeat signs are neither at the beginning of b. 136 nor at the end of b. 143; however, the intended repetition is proven by the fact that b. 142-143 were written directly before b. 150-151. At the same time, the first pair of bars was encompassed with a 1. volta bracket, while the second pair with a 2. volta bracket.
For convenience sake, that is to be able to compare AsI with the other sources, in the content transcription we adjust the notation of AsI to the remaining sources by writing out repeated b. 136-141 as b. 144-149. 

category imprint: Differences between sources; Editorial revisions; Corrections & alterations; Source & stylistic information

b. 144-147

composition: Op. 2, Variations, complete

..

In AsI the alternative L.H. part is not written out in these bars – see b. 135-139.

category imprint: Differences between sources

b. 146

composition: Op. 2, Variations, complete

..

As was the case 8 bars earlier, in AsI there is no  raising e1 to e1. An analogous deficiency is in the L.H. part too, which is marked in an abridged manner as a doubled R.H. part (an octave lower). The notation of A and the editions is correct.

category imprint: Interpretations within context; Differences between sources

issues: Omission of current key accidentals

b. 147

composition: Op. 2, Variations, complete

..

As in b. 139, in the main text we add a cautionary  to f and f1 and a  to e1 and e2, as well as to e1 in the alternative harmonic and rhythmic accompaniment. 

category imprint: Editorial revisions

b. 148-149

composition: Op. 2, Variations, complete

..

In AsI these bars are marked as a repetition of b. 140-141, which we reproduce only in the graphic transcription (version "transcript") – see b. 144-147.

category imprint: Differences between sources; Editorial revisions; Corrections & alterations; Source & stylistic information