16d4b3fd6d5aad18ebb731a5006a15180d3661ef test: mempool.dat compatibility between versions (Ivan Metlushko)
Pull request description:
Rationale: Verify mempool.dat compatibility between versions
The format of mempool.dat has been changed in #18038
The tests verifies the fix made in #18807 and ensures that the file format is compatible between current version and v0.19.1
The test verifies both backward and forward compatibility.
This PR also adds a log when we fail to add a tx loaded from mempool.dat.
It was useful when debugging this test and could be potentially useful to debug other scenarios as well.
Closes#19037
ACKs for top commit:
Sjors:
tACK 16d4b3fd6d5aad18ebb731a5006a15180d3661ef
Tree-SHA512: 00a38bf528c6478cb0da467af216488f83c1e3ca4d9166c109202ea8284023e99d87a3d6e252c4d88d08d9b5ed1a730b3e1970d6e5c0aef526fa7ced40de7490