$ git clone -n https://gitee.com/zhangwenlong01/java-21-openjdk.git /var/lib/mock/dist-an23-build-543525-86296/root/chroot_tmpdir/scmroot/java-21-openjdk
Cloning into '/var/lib/mock/dist-an23-build-543525-86296/root/chroot_tmpdir/scmroot/java-21-openjdk'...
$ git fetch origin a6546c7296170837dfaf2f246d730ee351459a57:KOJI_FETCH_HEAD
From https://gitee.com/zhangwenlong01/java-21-openjdk
 * [new ref]         a6546c7296170837dfaf2f246d730ee351459a57 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6546c7 [Bugfix] enable java-21-openjdk on loongarch64