Merge branch 'fix_segfault_bitdepth_change' into 'master'

Fix memory allocation when decoding a stream changing bitdepth between CVS

See merge request !1972

source/Lib/CommonLib/Reshape.cpp

@@ -65,10 +65,8 @@ void  Reshape::createDec(int bitDepth)
   m_lumaBD = bitDepth;
   m_reshapeLUTSize = 1 << m_lumaBD;
   m_initCW = m_reshapeLUTSize / PIC_CODE_CW_BINS;
-  if (m_fwdLUT.empty())
-    m_fwdLUT.resize(m_reshapeLUTSize, 0);
-  if (m_invLUT.empty())
-    m_invLUT.resize(m_reshapeLUTSize, 0);
+  m_fwdLUT.resize(m_reshapeLUTSize, 0);
+  m_invLUT.resize(m_reshapeLUTSize, 0);
   if (m_binCW.empty())
     m_binCW.resize(PIC_CODE_CW_BINS, 0);
   if (m_inputPivot.empty())