Regex in Field Transform not greedy?

Hi Base,

could it be that Regexes in Field Transforms are not greedy?

I am using this field transformation to extract sld.tld from hostnames:

[hostname_query_sub1]
CLEAN_KEYS = 1
MV_ADD = 0
SOURCE_KEY = querystring1
REGEX = ([^\.]+\.[^\.]+\.[^\.]+)
FORMAT = t2d::$1

Which gives these results: 1.2.3.4.in-addr.arpa -> 1.2.3 subdomain.subdomain.sld.tld -> subdomain.subdomain.sld

Using REGEX = ([^\.]+\.[^\.]+\.[^\.]+)$ works as intended: 1.2.3.4.in-addr.arpa -> 4.in-addr.arpa subdomain.subdomain.sld.tld -> subdomain.sld.tld

Shouldn't the expression match to the end of the string even without "$"?