It's just our flippin' luck that the smearing of Nicola Sturgeon occurred at the start of the Easter weekend, which was the only point between early January and the general election when we'd have to wait several days for proper polling data to come through. Or, as a Labour supporter put it on Twitter last night -
"YouGov, ComRes et al. I HAVE GONE 3 DAYS WITHOUT A POLL. JESUS DID NOT DIE FOR THIS."
Quite so. We do, however, finally have a second Scottish subsample from a GB-wide poll that was conducted partly after "Frenchgate". Populus' fieldwork started on April 2nd (the day of the leaders' debate) and finished yesterday, and the subsample shows : SNP 45%, Labour 27%, Conservatives 14%, Liberal Democrats 11%, UKIP 2%, Greens 1%.
Those numbers are entirely typical of what Populus have been showing since their big methodological change at the start of the year. The YouGov subsample conducted on Friday and Saturday also showed entirely normal results. So as of yet we have no reason whatever to suppose that the SNP's position has been damaged in any way, although to say that with real confidence we'll need a few subsamples that were conducted wholly after the smearing commenced, or more ideally, a bang-up-to-date full-scale Scottish poll.