[BUG] vector[bint] causes odd behaviour in vector[int]

[tsierens]

Describe the bug

I found some undesired behaviour while using the C++ vector class. A specific inclusion of a bint variable causes other ints to become bints.

This code

%%cython -a --cplus
from libcpp.vector cimport vector
print(<vector[int]>range(10))

outputs
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
which is expected.

But this code

%%cython -a --cplus
from libcpp.vector cimport vector
cdef vector[bint] foobar = []
print(<vector[int]>range(10))

outputs
[0, 1, 1, 1, 1, 1, 1, 1, 1, 1]
which is very unexpected

I think something is wrong here.

Code to reproduce the behaviour:

from libcpp.vector cimport vector
cdef vector[bint] foobar = []
print(<vector[int]>range(10))

Expected behaviour

<vector[int]>range(10) should be a vector with elements [0, 1, 2, 3, 4, 5, 6, 7, 8, 9], but it produces a vector of bint instead.

OS

Windows

Python version

3.11

Cython version

0.29

Additional context

No response