Only apply deviations if a better devcell is found

1 files changed, 3 insertions, 1 deletions

diff --git a/src/refine.c b/src/refine.c
index ca6f3cc..ed813ec 100644
--- a/src/refine.c
+++ b/src/refine.c
@@ -243,6 +243,7 @@ double refine_do_cell(ControlContext *ctx) {
 	devcell_try = malloc(sizeof(Basis));
 	devcell_try_best = malloc(sizeof(Basis));
 	for ( it=1; it<=2000; it++ ) {
+		int found = 0;
 		for ( comp=0; comp<18; comp++ ) {
 			memcpy(devcell_try, devcell, sizeof(Basis));
 			switch ( comp ) {
@@ -269,9 +270,10 @@ double refine_do_cell(ControlContext *ctx) {
 			if ( mean_dev_try < mean_dev ) {
 				mean_dev = mean_dev_try;
 				memcpy(devcell_try_best, devcell_try, sizeof(Basis));
+				found = 1;
 			}
 		}
-		memcpy(devcell, devcell_try_best, sizeof(Basis));
+		if ( found ) memcpy(devcell, devcell_try_best, sizeof(Basis));
 		if ( !(it % 20) ) printf("After %5i iterations: mean dev = %13.8f nm^1\n", it, mean_dev/DISPFACTOR);
 	}
 	free(devcell_try);