I like to know why sequences [1] and strict sequences [2] are showed in list view when has inactive at False?
[1] trytond/trytond/ir/sequence.xml at develop · tryton/trytond · GitHub
[2] trytond/trytond/ir/sequence.xml at develop · tryton/trytond · GitHub
That is an interesting question, and out of interest I had a quick look.
It seems it was introduced quite a long time ago: https://hg.tryton.org/trytond/rev/dd2fb553a4b6#l3.46 (and perhaps this behaviour was there before then, but this is where the ir/sequence.xml file was introduced…)
It is probably a legacy from TinyERP. I guess it was because at that time it was quite complicated to show inactive records. I think this could be safely removed.
The issue to remove them is Remove inactive sequences in list view (#10009) · Issues · Tryton / Tryton · GitLab