* Add logging to long migrations

Also fix v136 to not use models

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Fix broken merge base migration v128 for merged PR

* Allow PRs with deleted base branches to still show diff

* as per @lunny

Co-authored-by: Lauris BH <lauris@nix.lv>

* Add migration

* Fix migration

* Update models/migrations/v128.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>