$ git clone -n https://src.fedoraproject.org/rpms/gtksourceview4.git /var/lib/mock/f40-build-2095584-50387/root/chroot_tmpdir/scmroot/gtksourceview4
Cloning into '/var/lib/mock/f40-build-2095584-50387/root/chroot_tmpdir/scmroot/gtksourceview4'...
$ git fetch origin 49dbdeae4d8132c7afbda225f71aea6a5761266f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtksourceview4
 * [new ref]         49dbdeae4d8132c7afbda225f71aea6a5761266f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49dbdea Disable glade catalog in RHEL builds