excel cell names/alias are identified as loops

[dberardo-com]

i am trying to detect and remove all loops from an excel graph, an i am using this code to achieve that:

from formulas.excel.cycle import simple_cycles
list(simple_cycles(xl_model.dsp.dmap.succ))

however, it turns out the all excel cell names are seens as loop. example in this simple sheet i have got one actual loop (C1 <-> B2) and a cell alias on A3:

this is the output of the code above:

[dberardo-com]

btw on a related matter: is there any method to remove or update cells in a dsp once it has been loaded ? (in this case i would like to remove the loop for example, by removing one of the 2 cells causing it)