Notice the release of the low 1st finger on the A-string.
We usually hold fingers down if they are soon going to used again, however in the case of the 1 1/2 steps (augmented 2nd interval) E flat to F sharp it is recommended to lift the 1st finger slightly so as not to distort the hand frame.
SEE
Scores - One-Octave Scales & Arpeggios - violin & viola
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