$ git clone -n https://src.fedoraproject.org/rpms/crash.git /var/lib/mock/f39-build-2317744-58155/root/chroot_tmpdir/scmroot/crash
Cloning into '/var/lib/mock/f39-build-2317744-58155/root/chroot_tmpdir/scmroot/crash'...
$ git fetch origin 0166fc849a6a7e1489a9d5eb0b6a2c29c7e3fa4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/crash
 * [new ref]         0166fc849a6a7e1489a9d5eb0b6a2c29c7e3fa4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
Updating files:  44% (11/25)
Updating files:  48% (12/25)
Updating files:  52% (13/25)
Updating files:  56% (14/25)
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Updating files:  64% (16/25)
Updating files:  68% (17/25)
Updating files:  72% (18/25)
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Updating files:  80% (20/25)
Updating files:  84% (21/25)
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Updating files:  96% (24/25)
Updating files: 100% (25/25)
Updating files: 100% (25/25), done.
HEAD is now at 0166fc8 Rebase to upstream crash-8.0.4