[BUG] Occasional window freeze when opening project

[gadfly3173]

Describe the bug
IDE UI freezes completely when opening a project. The freeze occurs during popup window operations, causing the entire interface to become unresponsive.

To Reproduce
Steps to reproduce the behavior:

1. Open a project with GitToolBox enabled
2. Perform actions that trigger popup windows (e.g., global searching)
3. IDE becomes unresponsive and shows "Not Responding" in window title
4. After several seconds, IDE generates automatic thread dump

Expected behavior
IDE should remain responsive during popup window operations without freezing.

Plugin version
600.2.8+253

IDE version
IntelliJ IDEA 2026.1.2 (IU-261.24374.151)
OS: Linux

Screenshots
N/A - UI freeze, thread dump attached below

---

Additional context

Thread dump file:

threadDump-20260521-113547-1779334547352.txt

The relevant stack trace shows GitToolBox executing on the EDT:

"AWT-EventQueue-0" prio=0 tid=0x0 nid=0x0 waiting on condition
     java.lang.Thread.State: TIMED_WAITING
	at java.base@25.0.2/jdk.internal.misc.Unsafe.park(Native Method)
	...
	at com.intellij.psi.impl.PsiManagerImpl.dropPsiCaches(PsiManagerImpl.java:129)
	at zielu.gittoolbox.d.U.D.s(D.java:4)
	at zielu.gittoolbox.H.e.J.f.invokeSuspend(f.java:7)
	...

[zielu]

Hi,
it's related to Settings > Editor > Inlay Hints

• Code Change Date (GitToolBox)
• Code Issue Reference (GitToolBox)

As a workaround you can disable them while I'm looking into it.