$ git clone -n https://src.fedoraproject.org/rpms/crash-gcore-command.git /var/lib/mock/f38-build-side-42-init-devel-1128507-30305/root/chroot_tmpdir/scmroot/crash-gcore-command
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1128507-30305/root/chroot_tmpdir/scmroot/crash-gcore-command'...
$ git fetch origin 0f43714d364723681b0bbad87c105ca7f5a30063:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/crash-gcore-command
 * [new ref]         0f43714d364723681b0bbad87c105ca7f5a30063 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f43714 Version 1.6.4-1