Distance to the closest neighbor for each source is plotted against its ML_FLUX, demonstrating the general properties of the split sources on the sample level before and after cleaning on the right and middle panels. The color code denotes the extent likelihood 𝓛_ext. Note the removal of the sources in the lower right corner. On the right panel, the figure shows an example of the split sources (dashed white circles) in a nearby cluster 1eRASS J115517.9+232422 at the redshift of 0.14. After cleaning, the source center is shown in a solid white circle. The circles in green are the point sources detected by eROSITA in the field.