Scrolly error on pages with exactly one section

[smithkm]

Happens in both Firefox and Chrome. Happens on both internal webrick and github pages, including chrisbobbe.github.io

The only user facing problem I've seen is that it breaks the nav bar unhide link when in narrow aspect mode.

TypeError: $nav_a.scrolly(...) is undefined[Learn More] main.js:51:5
<anonymous>
https://chrisbobbe.github.io/assets/js/main.js:51:5
j
jquery.js:3148:9
fireWith
jquery.js:3260:6
ready
jquery.js:3472:2
J
jquery.js:3503:2
openRemotePrompt
jar:file:///usr/lib/firefox/omni.ja!/components/nsPrompter.js:508:5
openPrompt
jar:file:///usr/lib/firefox/omni.ja!/components/nsPrompter.js:542:17
alert
jar:file:///usr/lib/firefox/omni.ja!/components/nsPrompter.js:615:9
YRa
https://calendar.google.com/calendar/_/scs/calendar-static/_/js/k=calendar.mat.en_GB.R2EMhtydmqw.O/am=ABDCUkAI/rt=j/d=0/rs=ANwU0p4NXtX1IF0nLDsR-j9Z5Aa2slwTrw/m=pjCC5c,KQU6nb,RWEy5c,sykf,NJddyf,syiu,UDuglb,syn8,SUIuyf,CbhGKd,sy5a,dSba8,sy5d,sy5e,sy5c,sy5g,sy5f,sy5h,sy5j,sy54,sy55,sy5i,sy5k,lateload:155:465
aSa
https://calendar.google.com/calendar/_/scs/calendar-static/_/js/k=calendar.mat.en_GB.R2EMhtydmqw.O/am=ABDCUkAI/rt=j/d=0/rs=ANwU0p4NXtX1IF0nLDsR-j9Z5Aa2slwTrw/m=pjCC5c,KQU6nb,RWEy5c,sykf,NJddyf,syiu,UDuglb,syn8,SUIuyf,CbhGKd,sy5a,dSba8,sy5d,sy5e,sy5c,sy5g,sy5f,sy5h,sy5j,sy54,sy55,sy5i,sy5k,lateload:154:129
$Ra
https://calendar.google.com/calendar/_/scs/calendar-static/_/js/k=calendar.mat.en_GB.R2EMhtydmqw.O/am=ABDCUkAI/rt=j/d=0/rs=ANwU0p4NXtX1IF0nLDsR-j9Z5Aa2slwTrw/m=pjCC5c,KQU6nb,RWEy5c,sykf,NJddyf,syiu,UDuglb,syn8,SUIuyf,CbhGKd,sy5a,dSba8,sy5d,sy5e,sy5c,sy5g,sy5f,sy5h,sy5j,sy54,sy55,sy5i,sy5k,lateload:156:142

[smithkm]

Fixed by PR #31