7f67dd0aa6 [qa] Improve prioritisetransaction functional test (João Barbosa)
Pull request description:
Tree-SHA512: 7a5c446772069cd9ace085ae2635e1f61870c597e2216614628f4b6ebfe209b29f381a182a6f60d09f43f22bb82b59bb573b5441fa8e7b958a5fd0d5aad80d86
Backport of Core PR12079
https://github.com/bitcoin/bitcoin/pull/12079/