@Thorsten: From the comments Colin has added, it seems that you would have encountered this bug on *any* apache2 upgrade. I'm guessing that /usr/bin/apache2 was set -x, and this is the first upgrade of apache2 since.
Colin has outlined a fix, and as this only causes an issue for a small subset of users; i'm changing the status to low; and removing the regression tag.
@Thorsten: From the comments Colin has added, it seems that you would have encountered this bug on *any* apache2 upgrade. I'm guessing that /usr/bin/apache2 was set -x, and this is the first upgrade of apache2 since.
Colin has outlined a fix, and as this only causes an issue for a small subset of users; i'm changing the status to low; and removing the regression tag.
Thanks.