Further to a disscussion from a while back on the old message board, I just got an email from someone who found that in the USA and told me that they own two copies, one of each issue.
He says that one has the Jonny Clarke spelling and one the Johnny spelling, however the Johnny spelling version has a Sticker with the correct spelling placed over the older Jonny version, which would imply that this was retrospective and therefore the Jonny spelling on orange Labelled Total Sounds with the Total Sounds matrices is the 1st pressing.
The artwork of the original being utilised for the second issue. the dates of both Matrices still though marry up with the same release dates, so they would have been issued in any case in rapid succession.
It's all a moot point really, but I thought having discussed this here before some may be interested in knowing this.