Description: When users have multiple apps in card view and start to close the apps that arent the one that is the one that is the fiurthest on the right then that app will jump into the top left corner of the screen for a second. Repro Steps: 1) Update a Aries to 20150929110451 2) Open at least 3 apps 3) Hold the home button to enter card view 4) Start closing apps from the left 5) Observe top left of screen as apps are closed Actual: The rightmost app appears for a moment in the top left of the screen Expected: It is expected that no apps appear in the top left of the screen as you're closing apps Environmental Variables: Device: Aries 2.5 [Full Flash] Build ID: 20150929110451 Gaia: f345f6a015709beeb2ca3955cab077fcaa959d3b Gecko: acdb22976ff86539dc10413c5f366e1fb429a680 Gonk: 2916e2368074b5383c80bf5a0fba3fc83ba310bd Version: 44.0a1 (2.5) Firmware Version: D5803_23.1.A.1.28_NCB.ftf User Agent: Mozilla/5.0 (Mobile; rv:44.0) Gecko/44.0 Firefox/44.0 Repro frequency: 5/10 See attached: video clip(https://youtu.be/o5BUQRsFr1U), logcat

This issue DOES occur on Flame 2.5. Environmental Variables: Device: Flame 2.5 [Full Flash] BuildID: 20150929030205 Gaia: f345f6a015709beeb2ca3955cab077fcaa959d3b Gecko: acdb22976ff86539dc10413c5f366e1fb429a680 Gonk: c4779d6da0f85894b1f78f0351b43f2949e8decd Version: 44.0a1 (2.5) Firmware Version: v18D User Agent: Mozilla/5.0 (Mobile; rv:44.0) Gecko/44.0 Firefox/44.0 Result: The rightmost app appears for a moment in the top left of the screen ------------------------------------ This issue DOES NOT occur on Flame 2.2. Environmental Variables: Device: Flame 2.2 [Full Flash] BuildID: 20150929032504 Gaia: 5dd95cfb9f1d6501ce0e34414596ef3dd9c2f583 Gecko: 65ddad73ad6b Gonk: bd9cb3af2a0354577a6903917bc826489050b40d Version: 37.0 (2.2) Firmware Version: v18D User Agent: Mozilla/5.0 (Mobile; rv:37.0) Gecko/37.0 Firefox/37.0 Result: No apps appear in the view when closing apps.

[Blocking Requested - why for this release]: Regression and it looks fairly bad so nominating to block on this.

mozilla-inbound regression window: Last Working Device: Flame 2.5 BuildID: 20150917233553 Gaia: 2082894c8e974b0c371e4dec298e0ad0f3ac56b1 Gecko: 7641104770a80015e63597b58cb312fefcbd9ab4 Version: 43.0a1 (2.5) Firmware Version: v18Dv4 User Agent: Mozilla/5.0 (Mobile; rv:43.0) Gecko/43.0 Firefox/43.0 First Broken Device: Flame 2.5 BuildID: 20150917234653 Gaia: 2082894c8e974b0c371e4dec298e0ad0f3ac56b1 Gecko: 621ab19e86db28c38bbbf9119fbf6831ea344c54 Version: 43.0a1 (2.5) Firmware Version: v18Dv4 User Agent: Mozilla/5.0 (Mobile; rv:43.0) Gecko/43.0 Firefox/43.0 Gaia is the same so it's a Gecko issue. Gecko pushlog: http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=7641104770a80015e63597b58cb312fefcbd9ab4&tochange=621ab19e86db28c38bbbf9119fbf6831ea344c54 Caused by changes made in Bug 1097464.

Thinker this seems to have been caused by the changes for bug 1097464. Can you please take a look?

Forgot to put depends on.

Adam, I expect bug 1206418 would fix this bug. Could you check it?

Confirmed that this issue is no longer occurring on Flame 2.5 and Aries, probably fixed by bug 1206418. No flickering of rightmost card following STR. Device: Flame 2.5 BuildID: 20151002030232 Gaia: 9a682cb7bc8b7fde624a9b2b3c2d64415a08b04b Gecko: 5f16c6c2b969f70e8da10ee34853246d593af412 Gonk: c4779d6da0f85894b1f78f0351b43f2949e8decd Version: 44.0a1 (2.5) Firmware Version: v18Dv4 User Agent: Mozilla/5.0 (Mobile; rv:44.0) Gecko/44.0 Firefox/44.0 Device: Aries 2.5 BuildID: 20151002110438 Gaia: 9a682cb7bc8b7fde624a9b2b3c2d64415a08b04b Gecko: 5f16c6c2b969f70e8da10ee34853246d593af412 Gonk: 2916e2368074b5383c80bf5a0fba3fc83ba310bd Version: 44.0a1 (2.5) Firmware Version: D5803_23.1.A.1.28_NCB.ftf User Agent: Mozilla/5.0 (Mobile; rv:44.0) Gecko/44.0 Firefox/44.0 Marking bug as fixed.