Bug#1087314: fop: renders some roman text as italic with OTF fonts

[brian m. carlson]

Package: fop
Version: 1:2.10+dfsg-1
Severity: normal

I have an XSL-FO file (actually, many such files) using FreeSerif.  (I've
attached an example to this report.)  This XSL-FO file doesn't use
italics at all.

If I have `fonts-freefont-ttf` but _not_ `fonts-freefont-otf` installed
then the body text renders as roman (that is, not italic).  However, if
I have the latter installed, the body text is italic.  Obviously, this
is unwanted, since the real body text is supposed to be in roman text.
Note that if the XSL-FO file _does_ contain italics, the text is also in
italics then, too.

It's unclear to me whether this is a bug in FOP or elsewhere, so please
feel free to reassign if need be.  Also, if you need additional example
XSL-FO files or toolchain commands to generate them, please let me know.

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

Kernel: Linux 6.10.12-amd64 (SMP w/20 CPU threads; PREEMPT)
Kernel taint flags: TAINT_USER, TAINT_WARN
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages fop depends on:
ii  default-jre-headless [java2-runtime-headless]     2:1.21-76
ii  libfop-java                                       1:2.10+dfsg-1
ii  openjdk-11-jre-headless [java2-runtime-headless]  11.0.25+9-1
ii  openjdk-17-jre-headless [java2-runtime-headless]  17.0.13+11-2
ii  openjdk-21-jre-headless [java2-runtime-headless]  21.0.5+11-1

Versions of packages fop recommends:
ii  libsaxon-java  1:6.5.5-13

Versions of packages fop suggests:
pn  fop-doc  <none>

-- no debconf information

-- 
brian m. carlson (they/them or he/him)
Toronto, Ontario, CA
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