typo in several Sampler::clone() functions

src/samplers/halton.cpp

@@ -174,7 +174,7 @@ public:
 		sampler->m_scramble = m_scramble;
 		sampler->m_permutations = m_permutations;
 		for (size_t i=0; i<m_req1D.size(); ++i)
-			sampler->request2DArray(m_req1D[i]);
+			sampler->request1DArray(m_req1D[i]);
 		for (size_t i=0; i<m_req2D.size(); ++i)
 			sampler->request2DArray(m_req2D[i]);
 		return sampler.get();

src/samplers/independent.cpp

@@ -73,7 +73,7 @@ public:
 		sampler->m_sampleCount = m_sampleCount;
 		sampler->m_random = new Random(m_random);
 		for (size_t i=0; i<m_req1D.size(); ++i)
-			sampler->request2DArray(m_req1D[i]);
+			sampler->request1DArray(m_req1D[i]);
 		for (size_t i=0; i<m_req2D.size(); ++i)
 			sampler->request2DArray(m_req2D[i]);
 		return sampler.get();

src/samplers/ldsampler.cpp

@@ -138,7 +138,7 @@ public:
 			sampler->m_samples2D[i] = new Point2[m_sampleCount];
 		}
 		for (size_t i=0; i<m_req1D.size(); ++i)
-			sampler->request2DArray(m_req1D[i]);
+			sampler->request1DArray(m_req1D[i]);
 		for (size_t i=0; i<m_req2D.size(); ++i)
 			sampler->request2DArray(m_req2D[i]);
 

src/samplers/sobol.cpp

@@ -138,7 +138,7 @@ public:
 		sampler->m_arrayStartDim = m_arrayStartDim;
 		sampler->m_arrayEndDim = m_arrayEndDim;
 		for (size_t i=0; i<m_req1D.size(); ++i)
-			sampler->request2DArray(m_req1D[i]);
+			sampler->request1DArray(m_req1D[i]);
 		for (size_t i=0; i<m_req2D.size(); ++i)
 			sampler->request2DArray(m_req2D[i]);
 		return sampler.get();

src/samplers/stratified.cpp

@@ -138,7 +138,7 @@ public:
 			sampler->m_permutations2D[i] = new uint32_t[m_sampleCount];
 		}
 		for (size_t i=0; i<m_req1D.size(); ++i)
-			sampler->request2DArray(m_req1D[i]);
+			sampler->request1DArray(m_req1D[i]);
 		for (size_t i=0; i<m_req2D.size(); ++i)
 			sampler->request2DArray(m_req2D[i]);
 		return sampler.get();