Regex backreference being inserted instead of match group for project wide searches

Prerequisites

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  • Followed all applicable steps in the debugging guide: https://flight-manual.atom.io/hacking-atom/sections/debugging/
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Description

It appears the the regex find all and replace all within a project has a bug. When a file is open the backreference is inserted instead of the captured text. If the file isn’t open, the replace works as it should. This bug doesn’t seem to appear when find all and replace all within a single file.

Steps to Reproduce

1. create two identical test text files within a folder, with text to search and replace

2. Crate a regex search w/ replacement using backreference, leaving one file open..
   

3. Select Replace All

Expected behavior:

It would be expected that the search & replace would work in both files

Actual behavior:
In the file that was open, the backreference is inserted, instead of match:

And the file that was closed performed as expected:

Reproduces how often:
Consistently reproduces, in both Linux and MacOS

Versions

Atom : 1.45.0
Electron: 4.2.7
Chrome : 69.0.3497.128
Node : 10.11.0

Additional Information

Thank you, love atom : )