Not able to add escapable characters to TAG_PREFIX

[zergeborg]

I tried adding an escapable character (namely the "xxxxx/" (forward slash) character) to the TAG_PREFIX variable, but I was unable to do so because:

sed: bad option in substitution expression

On the other hand, if I try to assign the same character to the TAG_PREFIX variable by escaping it with a backward slash (as in "xxxxx\/"), then instead of escaping, the two characters are treated by their literal value, which causes bumping to fail (since the literal value and the escaped value cannot match):

fatal: ambiguous argument 'xxxxx\/v0.0.0': unknown revision or path not in the working tree.

Am I correct to assume that this is a bug? Also, is there a workaround for this?

Edit: since the first error complains about sed, I suspect this error might have to do with regular expressions, since regex normally treats the forward slash as a special delimiter character