Is there an issue with the git course?

I think there is an issue with the new git course.

In the project ‘Poem Fiasco’ ,
it says to ‘checkout the HEAD commit’ but when I did that and closed and reopened the ‘road not taken’ poem .
it is the same no mater what you do like running commands like
#git reset

after running the command 'git reset ’ and then checking the ‘git show HEAD road-not-taken.txt’ poem it shows that the poem is reset and ok in the terminal but,
when you reopen the ‘road not taken’ poem it still is the one that has been tampered with.

I tried adding the road not taken file to stage and then commiting it but the file doesn’t change as…

BELOW IS THE OUTPUT OF THE TERMINAL

$ git checkout HEAD road-not-taken.txt
$ git show HEAD road-not-taken.txt
commit bf498d9ab9017afc0ba7e6f03e715dab55bb644f
Author: danasselin johndoe@example.com
Date: Wed Nov 18 17:14:39 2015 -0500

Add first two verses, Road Not Taken

diff --git a/road-not-taken.txt b/road-not-taken.txt
new file mode 100644
index 0000000…99c55ff
— /dev/null
+++ b/road-not-taken.txt
@@ -0,0 +1,14 @@
+The Road Not Taken, by Robert Frost
+
+Two roads diverged in a yellow wood,
+And sorry I could not travel both
+And be one traveler, long I stood
+And looked down one as far as I could
+To where it bent in the undergrowth;
+
+Then took the other, as just as fair,
+And having perhaps the better claim,
+Because it was grassy and wanted wear;
+Though as for that the passing there
$

as you guys can see the poem is in its original state but if you commit it
it will get to this state…
I Took All the Roads, by Robert Forks

Two roads went exactly the same way
And I was happy to travel them both
And be one traveler, I figured it out quick
blah blah blah
blah blah blah blah

blah blah blah blah
Both had terrible claims
Because it was smooth and boring
blah blah blah blah
This poem is terrible, Rob.

blah blah blah blah
In leaves no step had trodden blah
Oh, blah blah blah BLAAAAHHH
WEEEEEEEE!! This road is awesome.
I’m definitely coming back here!

Hahahahahahahhaha
Two roads diverged in a hahahahaha
HAHAHAHAHAHAHHAHAHAHAH! Gotcha.

I don’t know how it changed now