SyncTeX does not work with Zathura

["Cezary Drożak via ntg-context" <ntg-context@ntg.nl>]

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Hello,
I have been trying to get SyncTeX to work with ConTeXt and Zathura, but 
nothing
seems to work.

I created a simple `hello.mklx` file and ran `context --synctex=-1 
hello.mklx`.
Then I launched Zathura with `zathura -x "nvr -cc \"call 
vimtex#view#reverse_goto(%{line}, '%{input}')\" --nostart" hello.pdf`.
When I clicked "Hello, world!" while holding a control key it printed the
following error to console:

```
(org.pwmt.zathura:80241): GLib-CRITICAL **: 15:49:12.359: 
g_variant_new_string: assertion 'string != NULL' failed
warning: Failed to obtain data via SyncTeX or data is incomplete.
```

I am attaching the `hello.mklx`, `hello.pdf` files and the generated 
`hello.synctex` file. I am getting the same result with `--synctex=1`.

Regards,
Cezary Drożak

[-- Attachment #2: hello.pdf --]
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[-- Attachment #3: hello.synctex --]
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SyncTeX Version:1
Output:pdf
Magnification:1000
Unit:1
X Offset:0
Y Offset:0
Content:
!86
{1
[0,0:0,0:0,0,0
v0,0:0,55380990:39158276,55380990,0
]
!60
}1
!7
Postamble:
Count:2
!22
Post scriptum:

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\starttext
Hello, world!
\stoptext

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