When Alkane(n=2, cap_front=False, cap_end=False) the output is n=1

[jaclark5]

Bug summary

When Alkane(n=2, cap_front=False, cap_end=False) the output is Alkane(n=1, cap_front=False, cap_end=False)

Code to reproduce the behavior

import mbuild as mb
c2h4 = mb.recipes.Alkane(n=2, cap_front=False, cap_end=False)
c2h4.visualize(show_ports=True)

Software versions

• Which version of mBuild are you using? (python -c "import mbuild as mb; print(mb.__version__)")
  • 0.15.1
• Which version of Python (python --version)?
  • Python 3.8.15
• Which operating system?
  • MacOS 11