Control: tags -1 patch
It passes on Salsa (i.e. after rebuilding the package) but fails on
debci. It looks like the reason is that this package uses a patched
_variables.scss created at build time, but a link to _transitions.scss,
so it's seeing the build-time (libjs-bootstrap4 4.6.1) _variables.scss
but the test-time (4.6.2) _transitions.scss.
The immediate fix is hence to no-change rebuild it (it's arch:all so
that will need to be a sourceful upload, not a binNMU).
In the longer term, we probably also want a mechanism to remind us to do
that if libjs-bootstrap4 is updated; I vaguely remember there being a
static linking register for that purpose.
