New nsdispatch.c __fallback errors, any clues?

With new nsdispatch.c v1.15 I constantly get this errors from procmail, 
sendmail, etc:

Dec 14 21:35:41 xxxxxxxx procmail[5897]: NSSWITCH(nss_method_lookup):
__fallback, passwd, getpwuid_r, not found
Dec 14 21:35:41 xxxxxxxx procmail[5897]: NSSWITCH(nss_method_lookup):
__fallback, group, endgrent, not found
Dec 14 21:35:41 xxxxxxxx procmail[5897]: NSSWITCH(nss_method_lookup):
__fallback, passwd, getpwnam_r, not found
Dec 14 21:35:41 xxxxxxxx procmail[5897]: NSSWITCH(nss_method_lookup):
files, group, getgroupmembership, not found
Dec 14 21:35:41 xxxxxxxx procmail[5897]: NSSWITCH(nss_method_lookup):
__fallback, group, endgrent, not found
Dec 14 21:35:41 xxxxxxxx procmail[5897]: NSSWITCH(nss_method_lookup):
__fallback, passwd, endpwent, not found

Here is my /etc/nsswitch.conf:
group: files
hosts: files dns
networks: files
passwd: files
shells: files
services: files
protocols: files
rpc: files

I use WITHOUT_NIS option in src.conf

What those errors ever means, what is wrong and how it can be fixed?
Everything works Ok with nsdispatch.c v1.14

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