plugin API: cannot set show property for a Part in 3.x

Regression from "import MuseScore 1.0"

The show property of a Part is now read only (and documented as such).
Existing code now shows:

currentScore.parts[p].mute = true; // no audio output
currentScore.parts[p].show = false; // no presence of part on sheet

21:-1: TypeError: Cannot assign to read-only property "show"
In mscore/plugin/api/part.h, it is defined as

Q_PROPERTY(bool show READ show)

instead of

Q_PROPERTY(bool show READ show WRITE setShow)

and later only:

bool show() const { return part()->show(); }

and no

void setShow(bool v) const { part()->setShow(v); }

which is however implemented in libmscore/part.cpp as

// @P show bool check/set whether or not a part is shown
(...)
bool show() const { return _show; }
void setShow(bool val) { _show = val; }

Would it be possible to reinstate the write possibility on this property ?
I would need to go back to previous version only to have my plugin working...

Thanks in advance,

Pierre A.