Visualization of the spectral energy distributions at the five epochs as discussed in the text, with panel 1 to 3 showing epochs 1−3, panel 4 showing epochs 4 and 5, and panel 5 showing epochs 6 and 7. The frequency/energy ranges covered by our observations are marked as shaded bands. Dashed lines mark the different emission components: afterglow (blue), flares (green), jump component (red). The thick line is the sum of these components.