Somebody called storeReleaseRequest ?

Oops, after upgrading to 1.0.19 my logs are filled with these messages,
anyone?

Oct 31 16:52:57 ns squid[3947]: Somebody called storeReleaseRequest on an
unlocked entry
Oct 31 16:53:01 ns squid[3840]: [31/Oct/1996:16:53:01 +0100] main.c:418:^I
Starting Squid Cache version 1.0.19 for rs6000-ibm-aix3.2...
Oct 31 16:53:01 ns squid[3840]: [31/Oct/1996:16:53:01 +0100] main.c:463:^I
Ready to serve requests.
Oct 31 16:55:09 ns squid[3840]: Somebody called storeReleaseRequest on an
unlocked entry
Oct 31 16:55:13 ns squid[3900]: [31/Oct/1996:16:55:13 +0100] main.c:418:^I
Starting Squid Cache version 1.0.19 for rs6000-ibm-aix3.2...
Oct 31 16:55:13 ns squid[3900]: [31/Oct/1996:16:55:13 +0100] main.c:463:^I
Ready
 to serve requests.
Received on Sat Nov 02 1996 - 04:54:56 MST