[Bug] Fork subagent cache not functioning properly, causing rapid token limit depletion

Bug Description
I think fork subagent has some problem with cache, they are draining limits super fast

Environment Info

• Platform: linux
• Terminal: windows-terminal
• Version: 2.1.126
• Feedback ID: e95b47e9-bef1-42d8-84c0-84d377413cd5

Errors

[{"error":"Error: VirtualMessageList: duplicate sibling keys (leaks DOM nodes via mapRemainingChildren overwrite): 5a4bc038-3d94-4ec8-8d38-f0e526b82b48-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 2aa73687-b562-46cf-a4a5-a603437d2dac-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 5e280a3e-ab6a-4b26-a835-ce6af1f44de4-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2\n    at w75 (/$bunfs/root/src/entrypoints/cli.js:6498:9256)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:6498:903)\n    at TD (/$bunfs/root/src/entrypoints/cli.js:497:30320)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:485:9137)\n    at wq4 (/$bunfs/root/src/entrypoints/cli.js:6498:895)\n    at sA (/$bunfs/root/src/entrypoints/cli.js:497:21130)\n    at a3 (/$bunfs/root/src/entrypoints/cli.js:497:39896)\n    at l9 (/$bunfs/root/src/entrypoints/cli.js:497:50705)\n    at cU (/$bunfs/root/src/entrypoints/cli.js:497:87759)\n    at qJ8 (/$bunfs/root/src/entrypoints/cli.js:497:86717)","timestamp":"2026-05-04T22:47:55.240Z"},{"error":"Error: VirtualMessageList: duplicate sibling keys (leaks DOM nodes via mapRemainingChildren overwrite): 5a4bc038-3d94-4ec8-8d38-f0e526b82b48-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 2aa73687-b562-46cf-a4a5-a603437d2dac-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 5e280a3e-ab6a-4b26-a835-ce6af1f44de4-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2\n    at w75 (/$bunfs/root/src/entrypoints/cli.js:6498:9256)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:6498:903)\n    at TD (/$bunfs/root/src/entrypoints/cli.js:497:30320)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:485:9137)\n    at wq4 (/$bunfs/root/src/entrypoints/cli.js:6498:895)\n    at sA (/$bunfs/root/src/entrypoints/cli.js:497:21130)\n    at a3 (/$bunfs/root/src/entrypoints/cli.js:497:39896)\n    at l9 (/$bunfs/root/src/entrypoints/cli.js:497:50705)\n    at cU (/$bunfs/root/src/entrypoints/cli.js:497:87759)\n    at LW$ (/$bunfs/root/src/entrypoints/cli.js:497:87731)","timestamp":"2026-05-04T22:48:13.850Z"},{"error":"Error: VirtualMessageList: duplicate sibling keys (leaks DOM nodes via mapRemainingChildren overwrite): 5a4bc038-3d94-4ec8-8d38-f0e526b82b48-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 2aa73687-b562-46cf-a4a5-a603437d2dac-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 5e280a3e-ab6a-4b26-a835-ce6af1f44de4-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2\n    at w75 (/$bunfs/root/src/entrypoints/cli.js:6498:9256)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:6498:903)\n    at TD (/$bunfs/root/src/entrypoints/cli.js:497:30320)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:485:9137)\n    at wq4 (/$bunfs/root/src/entrypoints/cli.js:6498:895)\n    at sA (/$bunfs/root/src/entrypoints/cli.js:497:21130)\n    at a3 (/$bunfs/root/src/entrypoints/cli.js:497:39896)\n    at l9 (/$bunfs/root/src/entrypoints/cli.js:497:50705)\n    at cU (/$bunfs/root/src/entrypoints/cli.js:497:87759)\n    at qJ8 (/$bunfs/root/src/entrypoints/cli.js:497:86717)","timestamp":"2026-05-04T22:48:32.590Z"},{"error":"Error: VirtualMessageList: duplicate sibling keys (leaks DOM nodes via mapRemainingChildren overwrite): 5a4bc038-3d94-4ec8-8d38-f0e526b82b48-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 2aa73687-b562-46cf-a4a5-a603437d2dac-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 5e280a3e-ab6a-4b26-a835-ce6af1f44de4-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2\n    at w75 (/$bunfs/root/src/entrypoints/cli.js:6498:9256)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:6498:903)\n    at TD (/$bunfs/root/src/entrypoints/cli.js:497:30320)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:485:9137)\n    at wq4 (/$bunfs/root/src/entrypoints/cli.js:6498:895)\n    at sA (/$bunfs/root/src/entrypoints/cli.js:497:21130)\n    at a3 (/$bunfs/root/src/entrypoints/cli.js:497:39896)\n    at l9 (/$bunfs/root/src/entrypoints/cli.js:497:50705)\n    at cU (/$bunfs/root/src/entrypoints/cli.js:497:87759)\n    at LW$ (/$bunfs/root/src/entrypoints/cli.js:497:87731)","timestamp":"2026-05-04T22:48:50.200Z"},{"error":"Error: VirtualMessageList: duplicate sibling keys (leaks DOM nodes via mapRemainingChildren overwrite): 5a4bc038-3d94-4ec8-8d38-f0e526b82b48-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 2aa73687-b562-46cf-a4a5-a603437d2dac-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2, 5e280a3e-ab6a-4b26-a835-ce6af1f44de4-d1ccd8c5-1736-4554-b019-1ef3cf8ac7e3 ×2\n    at w75 (/$bunfs/root/src/entrypoints/cli.js:6498:9256)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:6498:903)\n    at TD (/$bunfs/root/src/entrypoints/cli.js:497:30320)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:485:9137)\n    at wq4 (/$bunfs/root/src/entrypoints/cli.js:6498:895)\n    at sA (/$bunfs/root/src/entrypoints/cli.js:497:21130)\n    at…

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