Coloring Discrepancy with EOF

[rodibin-at-placemaildotonline]

Prerequisites

• [X ] Put an X between the brackets on this line if you have done all of the following:
  • Reproduced the problem in Safe Mode: https://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: https://flight-manual.atom.io/hacking-atom/sections/debugging/
  • Checked the FAQs on the message board for common solutions: https://discuss.atom.io/c/faq
  • Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aatom
  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

Coloring gets whack

Steps to Reproduce

1. Add this code to atom (runs fine)

#!/system/bin/sh

function parse_plex() {
    read -r -d '' pyfunc <<-"----EOF"
        print("test")
----EOF
    python -c $pyfunc
}

PY_RESULT='command -v python3'
  if [ "${PY_RESULT:-null}" = null ]; then
    echo "$LOG_DATE: Python is not installed, trying a regex..." &
      PLX_IP=$(
        curl -b ${MN_DIR}/plexcookie.txt "https://plex.tv/pms/resources.xml?includeHttps=1&X-Plex-Token=${PLX_TOK}" | \
        grep 'local="1"' | \
        sed 's/.*uri=\"\([^\"]*\)\"\slocal.*/\1/g' | \
        tail -n 1)
  else
    echo "$LOG_DATE: Python is installed, parsing Plex XML with python..." &
    parse_plex
  fi

2. Look at text below the last ----EOF
3. Coloring is incorrect
4. Break code by adding a quote " to the end of the last ----EOF so it reads ----EOF" OR remove the parentheses around ("test")
5. Coloring becomes correct, but code gets broken

Expected behavior: Syntax is properly picked up and coloring remains the same

Actual behavior: Coloring changes. Please see here if you'd like an explanation of the code

Reproduces how often: 100%

Versions

MacOS 10.14.4

Atom : 1.36.1
Electron: 2.0.18
Chrome : 61.0.3163.100
Node : 8.9.3