Fix undefined behavior issue in WarpX initialization #4615
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RemiLehe
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Jan 23, 2024
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This PR fixes an "out of bound" access issue found with UBSAN.
If the moving window is not initialized,
moving_window_diris-1, which resulted in the call ofpc.m_current_injection_position = geom[0].ProbHi(-1);orpc.m_current_injection_position = geom[0].ProbLo(-1);. These are "out of bound" memory accesses.