[MC-125038] New world generation doesn't populate edges of old world

New world generator doesn't populate chunks on edges of old world generated causing unpopulated lines between old and new world.

Related issues

is blocked by

MC-130182 Can't open world from 1.12

relates to

MC-125007 World fails to generate decorations on seemingly random quarter chunks

Attachments

5178019746038571832.zip

Comments

migrated 2018-02-10T16:47:53Z

[media][media][media][media]

wobst.michael 2018-05-21T13:53:46Z

Is this still an issue in the latest snapshot 18w20c?

Irbis 2018-05-24T12:54:14Z

Now I can't even load a world from 1.12 in 18w20c nor 18w21a. Log spams preparing spawn area 0%. Reported as MC-130182

kumasasa 2018-06-30T18:07:42Z

MC-130182 no longer blocks this ticket.
A test here showed that the issue is fixed, see screenshot.

Irbis 2018-07-13T17:45:42Z

Can't confirm as fixed. 1.13pre8 affected. Screenshot attached.

wobst.michael 2018-07-13T17:48:41Z

Can you please provide the seed.

Irbis 2018-07-13T17:59:10Z

testcase is in MC-130182 - worldsave 5178019746038571832.zip
after opening it in 1.12 - all ok.
after opening it in 1.13 - line of unpopulated terrain 8-blocks width at 250/Y/-2700

EDIT: Reuploading testcase here.

wobst.michael 2018-07-13T18:06:06Z

Was able to reproduce with the provided world download. Thank you.