SPV importname doesn't import on first rescan

[rithvikvibhu]

An spv node can't import a name on first rescan, could be a timing issue with filter being set late.

tg chat: https://t.me/hns_tech/61353

hsd test with the bug:
https://gist.github.com/rithvikvibhu/ec036c6a2609e79c96bf01b89cdb8f70

after placing file in hsd/test/:

npm run test-file test/spv-importname-test.js

[rithvikvibhu]

Interesting thing to note is that the 2nd rescan takes way longer (>30s) and I think it's even disconnecting (socket hangup) and when the nodes connect again, then the new filter is used and namestate has data.