The example was originally intended to have a literal backslash in it, but
'\ ' is interpreted by nroff as a non-breaking space.
It doesn't make much difference to the example, but the non-breaking
space triggers a bug in doclifter.
+space%20in%20tags -- Two
# add tag '(tags)', among other stunts.
-+crazy{ +(tags) +&are +#possible\ -- tag:"space in tags"
++crazy{ +(tags) +&are +#possible\e -- tag:"space in tags"
+match*crazy -- tag:crazy{
+some_tag -- id:"this is ""nauty)"""
.fi