It looks as if the display of function code in PgAdmin4 is not handling indentation properly, possibly due to TABS in the SQL.
Code that looks like
if .....
then
<TAB> if ....
<TAB> then
<TAB><TAB> ...
<TAB>end if;
end if;
gets displayed as
if ...
then
if ...
then
... <<-- this line is not indented properly
end if;
end if;
Is there a setting/preference for how to render TABS in the SQL display?