Bug#754424: libxml2: spurius parser error (regression in 2.9.1+dfsg1-4)

[Vincent Lefevre]

Package: libxml2
Version: 2.9.1+dfsg1-4
Severity: important

On the attached file, I get the following error:

$ xmllint --noout mathml.xsl
mathml.xsl:45: parser error : Entity 'InvisibleTimes' not defined
  <xsl:if test="not(contains('&InvisibleTimes;&rpar;',$text)) and
                                              ^
mathml.xsl:45: parser error : Entity 'rpar' not defined
  <xsl:if test="not(contains('&InvisibleTimes;&rpar;',$text)) and
                                                    ^
mathml.xsl:48: parser error : Entity 'InvisibleTimes' not defined
  <xsl:if test="not(contains('&InvisibleTimes;&lpar;',$text)) and
                                              ^
mathml.xsl:48: parser error : Entity 'lpar' not defined
  <xsl:if test="not(contains('&InvisibleTimes;&lpar;',$text)) and
                                                    ^
mathml.xsl:71: parser error : Entity 'InvisibleTimes' not defined
  <xsl:if test="$text != '&InvisibleTimes;'">
                                          ^

I had no such problem until 2.9.1+dfsg1-3, and downgrading makes
the error disappears.

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.11-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libxml2 depends on:
ii  libc6              2.19-5
ii  liblzma5           5.1.1alpha+20120614-2
ii  multiarch-support  2.19-5
ii  zlib1g             1:1.2.8.dfsg-1

Versions of packages libxml2 recommends:
ii  xml-core  0.13+nmu2

libxml2 suggests no packages.

-- no debconf information

mathml.xsl
Description: XML document