removing constraints after constrained optimization

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Hi NWChem forum

I am running constrained optimizations. This my input:
geometry
 load geometry.xyz
end
memory 1000 mb
basis
 * library 6-31g
end
dft
 xc b3lyp
 mult 2
 iterations 300
 direct
end
geometry adjust
 zcoord
  bond 13 21 1.21 constant
 end
end
driver
 xyz test
 maxiter 50
end
task dft optimize


for the next task I want to remove the constraint again. I have tried with the following:
restart consgeo
memory 1000 mb
geometry adjust
 zcoord
  bond 13 21 1.21
 end
end
task dft saddle
end


However, the bond still configures in the output as being User defined. How can I make certain the constraint is released?

best regards,
Rasmus


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