Thanks for your fast answer! I tried to re broadcast it on blockchain.info and it said: "Transaction already exists"
Whaaaaaaaaaaaaat
It does exist on blockchain.info, it does not exist on a lot of other nodes tough...
EDIT: i tried pushing it to my own node:
bitcoin-cli sendrawtransaction 02000000012a36cf517d06e87950c9c85af30ae97936476f3867dd14bc640dc705c17de4ee040000006b483045022100e6fc4c0179c608b2d56cb08a7e2211dbfce3d2dd0aea0bff03c94664c15d973c022071bd62dda946d2e673b45374d9b37ab77d02050f8044dbff19978354b5e279ec012103528b9190b470aabd2c84174d0465316acdce3834f0d606cad44b6a9295f14d40feffffff0236cfb400000000001976a914814a7172226d5e889143797f85d187e77d43d42d88acc6a4f100000000001976a9141a04f2c0082842714ed08099f2e12f3db340bbb388ac6c590700
6de91ba60f6ab83dcbe89e2d4aaa4f4feac2036553278050e9f45566f2729619
Since it worked, i don't have a double spending tx in my mempool (at least, not anymore, no way of knowing if there ever was one).