#2347 added a change out of scope to the PR:

one extra change - i made an context comment more readable like so: js-lingui:icu={var, plural, one {one book} other {many books}}&pluralize_on=count,anotherCount,thirdCount,manyCount,superLongVariableNameIsOkayCount

And this change breaks our TMS:

Same issue as in #2004 - if a comment gets too long, our TMS breaks it up into multiple lines, and multiple lines don't get parsed correctly in lingui

With this change, we have an entry:

#. jsi18nicu={hours, plural, one {{hours} hr} other {{hours} hrs}}&pluralize_on=hours
msgid "{hours} hr"
msgid_plural "{hours} hrs"
msgstr[0] "{hours} hr"
msgstr[1] "{hours} hrs"

That our TMS changes to:

#. jsi18nicu={hours, plural, one {{hours} hr} other {{hours}
#. hrs}}&pluralize_on=hours
msgid "{hours} hr"
msgid_plural "{hours} hrs"
msgstr[0] ""
msgstr[1] ""
msgstr[2] ""

And cannot be parsed when doing lingui compile step.

Looking for feedback here, either we revert the changes for having ICU readable, or change the compiling/PO parser to combine the comments. FWIW I attempted the latter, and its fairly involved.

Originally posted by @garikkh in #2347 (comment)