I seem to recall the last time I did a roofing job (11 years ago), I
recall removing the thin plastic film on the glue strip, which I
assumed was there to prevent the shingles getting all stuck together in
the bundle.

However, I'm roofing a new shed and this film is really tough to pull
off - not to mention messy. It'll take me longer to pull the film
strip than lay the shingles.

Question; is this designed to melt/dissolve; i.e., can I leave it on?

Note that the glue blobs don't have the covering. In the bundle
they're lined up with the plastic strips on the shingle above, on the
roof of course, the blobs would be under the covering shingle tabs.

thanks.