Goland 升级到 2019.2.1 无法同步配置

[mritd]

如题，从 2019.2 升级到 2019.2.1 点击同步配置按钮无反应，idea.log 里出现

2019-08-26 10:55:16,773 [  97419]  ERROR - cloudConfig.CloudConfigManager - Bad 7z signature
java.io.IOException: Bad 7z signature
        at org.apache.commons.compress.archivers.sevenz.SevenZFile.readHeaders(SevenZFile.java:326)
        at org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:241)
        at org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:108)
        at org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:262)
        at com.intellij.cloudConfig.CloudConfigManager.extractArchive(CloudConfigManager.java:2199)
        at com.intellij.cloudConfig.CloudConfigManager.connectThisInstanceOperation(CloudConfigManager.java:1116)
        at com.intellij.cloudConfig.CloudConfigManager.lambda$connectThisInstance$21(CloudConfigManager.java:1083)
        at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:294)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:834)