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diff -up ksh-20120801/src/cmd/ksh93/sh/xec.c.nohupfork ksh-20120801/src/cmd/ksh93/sh/xec.c
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--- ksh-20120801/src/cmd/ksh93/sh/xec.c.nohupfork	2015-08-27 14:25:38.925378019 +0200
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+++ ksh-20120801/src/cmd/ksh93/sh/xec.c	2015-08-27 14:30:42.267058087 +0200
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@@ -2067,6 +2067,7 @@ int sh_exec(register const Shnode_t *t,
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 				{
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 					sh_exec(t->par.partre,flags);
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 					shp->st.trapcom[0]=0;
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+					sh_offoption(SH_INTERACTIVE);
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 					sh_done(shp,0);
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 				}
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 			}