[Angular] Unnecessary newline before ending angle bracket

[voithos]

Prettier 1.18.2
Playground link

--parser angular

Input:

Blah blah blah blah blah <span>{{ thing }}</span>.

Output:

Blah blah blah blah blah <span>{{ thing }}</span
>.

Expected behavior:
The newline should not be added; the original html was already fine. It appears to occur whenever non-whitespace is added directly after the angle bracket, presumably to make long spans of text easier to read? I think it's doing it too eagerly, if that's the case; there's still plenty of room on the line.

This might be related to #5667, although that one is talking about template strings with --parser typescript.

[j-f1]

Minimal repro:

Prettier 1.18.2
Playground link

--parser angular

Input:

<span>{{x}}</span>.

Output:

<span>{{ x }}</span
>.

[voithos]

I think I managed to trace the cause of this back to a condition that ends up emitting a hardline. Replacing that with softline fixes this case, but breaks lots of other formats.

I tried replacing the hardline with various permutations of ifBreak(hardline, softline), but can't seem to figure out exactly what to condition on.

[listepo]

Any news?