**Describe the bug** GCC15 debug builds detected https://cdash.qmcpack.org/tests/49376906 https://github.com/QMCPACK/qmcpack/blob/1da3e230198876b21e5ea4dbb254d1ec227bae21/src/formic/utils/lmyengine/engine.cpp#L115 access `_vg[0]` and `_weight[0]` before vectors are initialized.
Describe the bug
GCC15 debug builds detected https://cdash.qmcpack.org/tests/49376906
qmcpack/src/formic/utils/lmyengine/engine.cpp
Line 115 in 1da3e23
access
_vg[0]and_weight[0]before vectors are initialized.