bug#64080: e execute command within braces

[Thomas Loimer]

Without braces, the expected outcome:

$ echo -e "1671779521\n1671952321" | sed 's/^/date -I -d @/; e'
2022-12-23
2022-12-25

With braces, I would expect the same outcome (the pattern match for 
completenes),

$ echo -e "1671779521\n1671952321" | sed '/./ {s/^/date -I -d @/; e }'
sed: -e expression #1, char 0: unmatched `{'

As a flag to the s command, e works. Semicolon after e does not help.
Do I miss anything?