floatformat combined with intcomma filters misformatting in Django 4.2.10

[nathangeffen]

A security bug was removed from the intcomma template filter in Django 4.2.10. But it appears a bug was introduced that misformats numbers when the intcomma filter is combined with floatformat.
The problem is a leading comma is added to some numbers (I suspect it is numbers with exactly 3 digits).

Example code that worked in 4.2.7 but now misformatting in 4.2.10:
{{total_amount|floatformat:"2"|intcomma}}

In the attached screenshots the bug is apparent. They are the same screen displayed using 4.2.7 and 4.2.10. Note the leading comma before 3 digit numbers in the one screenshot (that's 4.2.10).