When trying to add htmlHelp text to a field and when workflow is installed, no help text is output in the admin when using the htmlHelp option.
Ex:
{
name: 'myField',
label: 'Label',
htmlHelp: 'See additional help <a href="https://google.com">here</a>.',
type: 'string'
}
Admin Interface:

Just for sanity, checked in another project where workflow was not installed and worked as expected.