Django MultipleChoiceField not showing saved choices

This is what my form looks like.

class DecisionMadeForm(forms.ModelForm):

option = forms.MultipleChoiceField(required=False, label = "Which option(s) did you choose? (Please check ALL that apply)")

class Meta:
model = Decision_Made
fields = ('option', )

def __init__(self, *args, **kwargs):
dec_id = kwargs.pop("dec_id")
choicelist = kwargs.pop("choicelist")
super(DecisionMadeForm, self).__init__(*args, **kwargs)
instance = getattr(self, 'instance', None)
query = Solution_Options.objects.filter(dec_id = dec_id, archived = 'N').values_list('option', flat=True).distinct()
query_choices = [(id, id) for id in query]
self.fields['sol_option']=forms.MultipleChoiceField(choices=query_choices, required=False, widget=forms.CheckboxSelectMultiple,label="Which choice did you make?")

if self.instance:
self.fields['sol_option'].initial = choicelist


In my views.py

def decision_made(request):
try:
dec_made = Decision_Made.objects.get(dec_id = dec_id)
except ObjectDoesNotExist:
REDIRECT TO DIFFERENT PAGE

if request.method == 'POST':
decmadeform = DecisionMadeForm(request.POST, instance=dec_made, dec_id=dec_id, optionlist = dec_made.option)
if decmadeform.is_valid():
id = decmadeform.save(commit=False)
...

else:
decmadeform = DecisionMadeForm(instance=dec_made, dec_id = dec_id, optionlist = dec_made.option)


All the choices are stored successfully in the database. But no matter what I do I cannot display it on the screen. I have tried all the suggestions given in stack overflow and nothing has worked.

Any help would be much appreciated!

forms.ModelMultipleChoiceField

forms.MultipleChoiceField

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