Change #4148 wasn't complete

- there was a memory leak when using negotiated TSIG keys.
- TKEY responses could only be signed when using a newly negotiated
  key; if an existent matching TSIG was found in in the keyring it
  would not be used.
40 jobs for !1434 with 849-fix-tkey-leak in 13 minutes and 30 seconds (queued for 4 seconds)
detached
Status Job ID Name Coverage
  Precheck
passed #164566
amd64 linux
🐞:sid:amd64

00:00:37

passed #164565
amd64 linux
misc:sid:amd64

00:00:16

 
  Build
passed #164577
amd64 linux
asan:sid:amd64

00:05:09

passed #164578
amd64 linux
clang:stretch:amd64

00:01:23

passed #164579
i386 linux
clang:stretch:i386

00:01:33

passed #164567
amd64 linux
docs:sid:amd64

00:01:10

passed #164576
amd64 linux
gcc:bionic:amd64

00:03:03

passed #164568
amd64 linux
gcc:centos6:amd64

00:02:33

passed #164569
amd64 linux
gcc:centos7:amd64

00:02:45

passed #164574
amd64 linux
gcc:fedora29:amd64

00:02:01

passed #164570
amd64 linux
gcc:jessie:amd64

00:01:08

passed #164572
amd64 linux
gcc:sid:amd64

00:01:40

passed #164573
i386 linux
gcc:sid:i386

00:03:22

passed #164571
amd64 linux
gcc:stretch:amd64

00:02:10

passed #164575
amd64 linux
gcc:xenial:amd64

00:02:53

passed #164580
amd64 linux
pkcs11:sid:amd64

00:01:28

 
  Test
passed #164589
amd64 linux
install:gcc:sid:amd64

00:02:42

passed #164600
amd64 linux
system:asan:sid:amd64

00:07:42

passed #164598
amd64 linux
system:gcc:bionic:amd64

00:06:40

passed #164581
amd64 linux
system:gcc:centos6:amd64

00:06:34

passed #164583
amd64 linux
system:gcc:centos7:amd64

00:06:16

passed #164594
amd64 linux
system:gcc:fedora29:amd64

00:06:27

passed #164585
amd64 linux
system:gcc:jessie:amd64

00:06:17

passed #164590
amd64 linux
system:gcc:sid:amd64

00:07:30

passed #164592
i386 linux
system:gcc:sid:i386

00:06:34

passed #164587
amd64 linux
system:gcc:stretch:amd64

00:06:00

passed #164596
amd64 linux
system:gcc:xenial:amd64

00:06:31

passed #164603
amd64 linux
system:pkcs11:sid:amd64

00:06:39

passed #164601
amd64 linux
unit:asan:sid:amd64

00:01:02

passed #164602
amd64 linux
unit:clang:stretch:amd64

00:00:46

passed #164599
amd64 linux
unit:gcc:bionic:amd64

00:00:51

passed #164582
amd64 linux
unit:gcc:centos6:amd64

00:00:45

passed #164584
amd64 linux
unit:gcc:centos7:amd64

00:01:24

passed #164595
amd64 linux
unit:gcc:fedora29:amd64

00:00:58

passed #164586
amd64 linux
unit:gcc:jessie:amd64

00:01:03

passed #164591
amd64 linux
unit:gcc:sid:amd64

00:01:21

passed #164593
i386 linux
unit:gcc:sid:i386

00:00:43

passed #164588
amd64 linux
unit:gcc:stretch:amd64

00:00:43

passed #164597
amd64 linux
unit:gcc:xenial:amd64

00:01:01

passed #164604
amd64 linux
unit:pkcs11:sid:amd64

00:00:55