Bar graph with an ampersand in a compound string in a variable label

[Jeff Ack]

I'm using compound strings to label data that needs to go on two rows on the x-axis of a bar graph. However, if the string contains an ampersand (&), the command gives a "type mismatch" error. This problem only exists if the ampersand is in the compound string.
For example:

sysuse auto, clear
label define rep_label 1 "A&B" 2 `" "first line +" "second line" "' 3 "C" 4 "D" 5 "E"
label values rep78 rep_label
tab rep78
graph bar price, over(rep78)

works fine, but when I change the "+" to a "&", I get the "type mismatch error":

sysuse auto, clear
label define rep_label 1 "A&B" 2 `" "first line &" "second line" "' 3 "C" 4 "D" 5 "E"
label values rep78 rep_label
tab rep78
graph bar price, over(rep78)

Is there a way for me to include the ampersand in a compound string?

[Nick Cox]

Seems like a parsing bug. I'd go straight to StataCorp Technical Services.