Structures generating in wrong biomes

Found these in jungles and swamps, seem to be replacing other generated structures. This is happening not only on single player worlds but also on SMP worlds.

Uploaded another picture of a temple spawned in a Jungle biome. It does overlap to the Taiga in the background however the centre is located in the jungle.

I'm starting to think my problem with desert temples not in deserts is not so much the location, but that the use of sandstone does not fit.

If desert temples do occur in other biomes their principle material should reflect where they are. So temples in jungles would be made of (say) cobblestone but in swamps they are (say) stone.

Confirmed.
Seed: -5101227880727282991
x: -760
z: 700
Border of jungle and plains.
Probably it's supposed to be a jungle temple.

I have an idea why this might be happening. If my idea is true, then structure is a desert pyramid if and only if both statements are true:
1) center of a structure is not in one of the following biomes: desertHills, jungle, jungleHills, swampland.
2) structure near one of the following biomes: desert, desertHills, jungle, jungleHills, swampland.
Can anyone confirm or disprove this?

EDIT: My idea was not exactly correct. I found a pyramid with center in the swamp, but some parts in the river. But it looks like it always happens near the border of 2 or more biomes such that one biome is neither desertHills, jungle, jungleHills nor swampland and another is desert, desertHills, jungle, jungleHills or swampland.

The problem is on every structure... witch hut, temple. villages, etc...

Posted one earlier on regarding a village and temple spawning the middle of a desert.

https://mojang.atlassian.net/browse/MC-934

I made a mod that is supposed to fix desert temples generating instead of witch huts and jungle temples. I added it as attachment.

@mojang I replaced this code:

return world.getChunkManager().areBiomesViable(chunkX * 16 + 8, chunkZ * 16 + 8, 0, biomeList);

with this code:

return biomeList.contains(world.getBiomeGenForCoords(chunkX * 16 + 8, chunkZ * 16 + 8));

It looks like world.getChunkManager().areBiomesViable(x, z, 0, biomeList) checks slightly different block(s) than
world.getBiomeGenForCoords(x, z). So when (x,z) is near the biome border, they return different results. Not sure why.

Also I replaced this (pseudocode incoming!):

biome = world.getBiomeGenForCoords(chunkX * 16 + 8, chunkZ * 16 + 8);
if (biome == jungleHills || biome == jungle) {
    // jungle temple
} else if (biome == swampland) {
    // witch hut
} else {
    // desert temple
}

with this:

biome = world.getBiomeGenForCoords(chunkX * 16 + 8, chunkZ * 16 + 8);
if (biome == jungleHills || biome == jungle) {
    // jungle temple
} else if (biome == swampland) {
    // witch hut
} else if (biome == desertHills || biome == desert) {
    // desert temple
} else {
    // bug!
}

This last change is not required of course.

You sure DiEvAl? I found structures (incorrectly spawned) in one single biome. For example in the middle of the ocean surround by nothing but ocean.

Also, the bug is effecting all structures including villages... not just temples.

Congrats it appears that the mod fix by DiEvAl has fixed the problem!! Checked seed: 6837862977289291133 x-cords: -660 z-cords:521 for temple and it wasn't there check out the image attached.

@Timothy Cachia
Can you give me the seed and coordinates?

Looking into villages now.

Found one problem with villages. But it's also only happening on biome borders, and couldn't cause the village in wth2.png. There must be something else that I can't find.