tulip unicode symbols in subject escape dedicated place in the message list

[Aidas Kasparas]

Received message with Subject header as following:

Subject: =?utf-8?Q?=F0=9F=8C=B7=F0=9F=8C=B7=F0=9F=8C=B7Pasir=C5=ABpink_dovana_MAMAI_i=C5=A1anksto=F0=9F=8C=B7=F0=9F=8C=B7=C2=A0=F0=9F=8C=B7?=

Got screwed message list as shown in screenshot attached

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: thunderbird 1:52.7.0+build1-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.9-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: kaspar 1812 F.... pulseaudio
BuildID: 20180416164209
Channel: Unavailable
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 24 13:48:14 2018
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Thunderbird (default) - {972ce4c6-7e08-4474-a285-3208198ce6fd}
InstallationDate: Installed on 2018-04-11 (13 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180409)
IpRoute:
 default via 172.17.2.254 dev wlp4s0
 default via 172.17.2.254 dev wlp4s0 proto dhcp metric 600
 172.17.2.0/24 dev wlp4s0 proto kernel scope link src 172.17.2.83
 172.17.2.0/24 dev wlp4s0 proto kernel scope link src 172.17.2.83 metric 600
PrefSources: prefs.js
Profiles: Profile0 (Default) - LastVersion=52.7.0/20180416164209 (In use)
RunningIncompatibleAddons: True
SourcePackage: thunderbird
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/05/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: N27ET23W (1.09 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20L9002GMH
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN27ET23W(1.09):bd03/05/2018:svnLENOVO:pn20L9002GMH:pvrThinkPadT580:rvnLENOVO:rn20L9002GMH:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T580
dmi.product.name: 20L9002GMH
dmi.product.version: ThinkPad T580
dmi.sys.vendor: LENOVO