Export PDF hangs on focus heading

[frostime]

Is there an existing issue for this?

• I have searched the existing issues

Can the issue be reproduced with the default theme (daylight/midnight)?

• I was able to reproduce the issue with the default theme

Could the issue be due to extensions?

• I've ruled out the possibility that the extension is causing the problem.

Describe the problem

复现方法如下：

1. 把一个引用块设置为标题
2. 聚焦这个标题块
3. 导出 PDF，卡死

群友们成功复现了这个 bug

Expected result

正常导出。

Screenshot or screen recording presentation

No response

Version environment

- Version: win10
- Operating System: 2.8.7
- Browser (if used): no

Log file

没有特别反应：

I 2023/05/12 16:24:04 runtime.go:124: use network proxy [system]
I 2023/05/12 16:24:04 serve.go:112: kernel [pid=2272] http server [127.0.0.1:12232] is booting
I 2023/05/12 16:24:04 pandoc.go:67: built-in pandoc [ver=2.19.2, bin=H:\Media\SiYuan\temp\pandoc\bin\pandoc.exe]
I 2023/05/12 16:24:05 sync.go:150: sync before boot
I 2023/05/12 16:24:05 repository.go:1032: boot get sync cloud files elapsed [0.40s]
I 2023/05/12 16:24:05 blocktree.go:448: read block tree [10 MB] to [H:\Media\SiYuan\temp\blocktree], elapsed [0.03s]
I 2023/05/12 16:24:05 conf.go:682: database size [112 MB], tree/block count [720/33316]
I 2023/05/12 16:24:05 working.go:155: kernel booted
I 2023/05/12 16:24:05 box.go:78: auto stat [trees=720, blocks=33316, dataSize=237 MB, assetsSize=154 MB]
I 2023/05/12 16:24:05 disk.go:33: disk usage [total=846 GB, used=442 GB, free=404 GB]
I 2023/05/12 16:24:06 serve.go:125: reverse proxy server [127.0.0.1:6806] is booting
I 2023/05/12 16:24:52 repository.go:1133: synced data repo [provider=0, ufc=3, dfc=1, ucc=1, dcc=0, ub=76 kB, db=106 kB] in [1.91s]

More information

No response

[88250]

我这里在 v287 和 dev 上均重现不了，操作如下：

[Dammyxy]

我这里在 v287 和 dev 上均重现不了，操作如下：

设置-导出里将引用改为脚注试试

[88250]

@Dammyxy 能够重现了，多谢。