Double arrow is tilted to the left when in a square

[FrozenRosesLP]

Hello,
Is there a way to make the double arrow vertical and not tilted to the left in this picture?

Link.

[varkor]

At the moment, there's not a convenient way to do this in quiver, but you can modify the output TikZ code:

\[\begin{tikzcd}
	\bullet && \bullet \\
	\\
	\bullet && {\text{very loooong name}}
	\arrow[from=1-1, to=3-1]
	\arrow[""{name=0, anchor=center, inner sep=0}, from=1-1, to=1-3]
	\arrow[from=1-3, to=3-3]
	\arrow[""{name=1, anchor=center, inner sep=0, pos=0.92}, from=3-1, to=3-3]
	\arrow[shorten <=9pt, shorten >=9pt, Rightarrow, from=0, to=1]
\end{tikzcd}\]

Notice the pos=0.92 in the (empty) arrow label. It would be good to make this possible from inside quiver too; it would probably be worth opening a new issue.