Fig. A.1

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Median Stokes I profiles computed for the four near-infrared epochs: 2019a, 2019b, 2020a, and 2020b. The profiles are obtained using the full mask (top) magnetically sensitive (middle) and insensitive (bottom) line lists in LSD. Following the linear dependence of the Zeeman effect on the Landé factor, high-geff lines are broader than low-geff lines on average. The width of the profiles changes over time in the high-geff case, while it remains reasonably constant in the low-geff case.
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