[Freeswitch-users] confuse of regex command with "|"

[Seven Du]

Hi, is this a bug?

freeswitch at internal> regex "10"|"09|10"
false
freeswitch at internal> regex "10"|"10"
true
freeswitch at internal> regex "10"|"(09|10)"
false
freeswitch at internal> 2009-09-27 11:47:00.815355 [ERR] switch_regex.c:101
COMPILE ERROR: 4 [missing )]["(09]


the first one should be true?
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