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Clarify _readaccountconf_mutable_default
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@ -358,7 +358,7 @@ PYTHON
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# - if MY_CONF is set _empty_, output $default_value
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# (lets user `export MY_CONF=` to clear previous saved value
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# and return to default, without user having to know default)
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# - otherwise if _readaccountconf_mutable $name is non-empty, return that
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# - otherwise if _readaccountconf_mutable MY_CONF is non-empty, return that
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# (value of SAVED_MY_CONF from account.conf)
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# - otherwise output $default_value
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_readaccountconf_mutable_default() {
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@ -366,8 +366,9 @@ _readaccountconf_mutable_default() {
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_default_value="$2"
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eval "_value=\"\$$_name\""
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eval "_explicit_empty_value=\"\${${_name}+empty}\""
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if [ -z "${_value}" ] && [ "${_explicit_empty_value:-}" != "empty" ]; then
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eval "_name_is_set=\"\${${_name}+true}\""
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# ($_name_is_set is "true" if $$_name is set to anything, including empty)
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if [ -z "${_value}" ] && [ "${_name_is_set:-}" != "true" ]; then
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_value="$(_readaccountconf_mutable "$_name")"
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fi
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if [ -z "${_value}" ]; then
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