Rebase to EPEL 8 ImageMagick-6.9.13.52-2.el8, picking up the vendor's
upstream soname-revert patch
Drop the TuxCare backports for CVE-2026-61857, CVE-2026-61861,
CVE-2026-61863, CVE-2026-61866 and CVE-2026-61870: all five are fixed in the
6.9.13.52 tarball, verified against the extracted source rather than the
changelog
Keep the CVE-2026-45664 backport: upstream dd198f960 landed in ImageMagick 7
and never reached the 6.x line, so both MNG_MAX_LOOP_OPS abort paths in
coders/png.c still leak the chunk buffer here
Keep the MSL empty-image crash fix (partial backport of upstream fde1f305,
not present in the legacy 6.x line)
CVE-2026-86420: relinquish the MemoryResource reservation when the
in-memory pixel-cache allocation fails in OpenPixelCache (magick/cache.c)
CVE-2026-86421: destroy the level's draw_info when MSLEndElement pops a
group (coders/msl.c) to prevent a memory leak